Linkers (Miscellaneous) and its Impurities

Linkers, also referred to as spacers, are molecules or segments of molecules that connect two or more functional units within a larger molecular structure or complex. Reference standards of Linkers (Miscellaneous) API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 61 results for Linkers (Miscellaneous) Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 27 0030745

2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(prop-2-yn-1-yloxy)ethoxy)ethoxy)propanoate

2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(prop-2-yn-1-yloxy)ethoxy)ethoxy)propanoate

  • Catalogue No.:PA 27 0030745

  • CAS :

    1428629-71-3

  • Molecular Formula : C14H19NO7

  • Molecular Weight : 313.31

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PA 27 0030746

3,3'-((2-amino-2-(15-oxo-2,5,8,11,18-pentaoxa-14-azanonadecan-19-yl)propane-1,3-diyl)bis(oxy))bis(N-(2,5,8,11-tetraoxatridecan-13-yl)propanamide)

3,3'-((2-amino-2-(15-oxo-2,5,8,11,18-pentaoxa-14-azanonadecan-19-yl)propane-1,3-diyl)bis(oxy))bis(N-(2,5,8,11-tetraoxatridecan-13-yl)propanamide)

  • Catalogue No.:PA 27 0030746

  • CAS :

    1428661-67-9

  • Molecular Formula : C40H80N4O18

  • Molecular Weight : 905.09

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PA 27 0030747

2-(2-((tert-butoxycarbonyl)amino)ethoxy)acetic acid

2-(2-((tert-butoxycarbonyl)amino)ethoxy)acetic acid

  • Catalogue No.:PA 27 0030747

  • CAS :

    142929-49-5

  • Molecular Formula : C9H17NO5

  • Molecular Weight : 219.24

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PA 27 0030748

3-(3,6,9,12-Tetraoxatridec-1-yloxy)benzenamine

3-(3,6,9,12-Tetraoxatridec-1-yloxy)benzenamine

  • Catalogue No.:PA 27 0030748

  • CAS :

    1429340-32-8

  • Molecular Formula : C15H25NO5

  • Molecular Weight : 299.37

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030749

3,6,9,12,15-Pentaoxaoctadec-17-ynoic acid

3,6,9,12,15-Pentaoxaoctadec-17-ynoic acid

  • Catalogue No.:PA 27 0030749

  • CAS :

    1429934-37-1

  • Molecular Formula : C13H22O7

  • Molecular Weight : 290.31

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030750

2,3,5,6-Tetrafluorophenyl 3-[2-[2-[[3-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-1-oxopropyl]amino]ethoxy]ethoxy]propanoate

2,3,5,6-Tetrafluorophenyl 3-[2-[2-[[3-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-1-oxopropyl]amino]ethoxy]ethoxy]propanoate

  • Catalogue No.:PA 27 0030750

  • CAS :

    1431291-44-9

  • Molecular Formula : C20H20F4N2O7

  • Molecular Weight : 476.38

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030751

Boc-PEG8-Boc

Boc-PEG8-Boc

  • Catalogue No.:PA 27 0030751

  • CAS :

    1432970-18-7

  • Molecular Formula : C28H54O13

  • Molecular Weight : 598.73

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PA 27 0030752

tert-Butyl (S)-4-(6-aminopyridin-3-yl)-3-methylpiperazine-1-carboxylate

tert-Butyl (S)-4-(6-aminopyridin-3-yl)-3-methylpiperazine-1-carboxylate

  • Catalogue No.:PA 27 0030752

  • CAS :

    1433849-58-1

  • Molecular Formula : C15H24N4O2

  • Molecular Weight : 292.38

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030753

tert-Butyl 1-(4-formylphenoxy)-3,6,9,12-tetraoxapentadecan-15-oate

tert-Butyl 1-(4-formylphenoxy)-3,6,9,12-tetraoxapentadecan-15-oate

  • Catalogue No.:PA 27 0030753

  • CAS :

    1433996-83-8

  • Molecular Formula : C22H34O8

  • Molecular Weight : 426.51

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030754

2,5-Dioxo-1-pyrrolidinyl 3-[(14-azido-3,6,9,12-tetraoxatetradec-1-yl)oxy]propanoate

2,5-Dioxo-1-pyrrolidinyl 3-[(14-azido-3,6,9,12-tetraoxatetradec-1-yl)oxy]propanoate

  • Catalogue No.:PA 27 0030754

  • CAS :

    1433996-86-1

  • Molecular Formula : C17H28N4O9

  • Molecular Weight : 432.43

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PA 27 0030755

(Z)-cyclooct-4-en-1-yl (4-nitrophenyl) carbonate

(Z)-cyclooct-4-en-1-yl (4-nitrophenyl) carbonate

  • Catalogue No.:PA 27 0030755

  • CAS :

    1438415-89-4

  • Molecular Formula : C15H17NO5

  • Molecular Weight : 291.30

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PA 27 0030756

tert-Butyl 2-(2-(2-chloroethoxy)ethoxy)acetate

tert-Butyl 2-(2-(2-chloroethoxy)ethoxy)acetate

  • Catalogue No.:PA 27 0030756

  • CAS :

    1442085-43-9

  • Molecular Formula : C10H19ClO4

  • Molecular Weight : 238.71

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030757

m-PEG3-Hydrazide

m-PEG3-Hydrazide

  • Catalogue No.:PA 27 0030757

  • CAS :

    1442104-10-0

  • Molecular Formula : C8H18N2O4

  • Molecular Weight : 206.24

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030758

16,16-Dimethyl-14-oxo-3,6,9,12,15-pentaoxaheptadecanoic acid

16,16-Dimethyl-14-oxo-3,6,9,12,15-pentaoxaheptadecanoic acid

  • Catalogue No.:PA 27 0030758

  • CAS :

    1442466-57-0

  • Molecular Formula : C14H26O8

  • Molecular Weight : 322.35

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030759

tert-Butyl 1-phenyl-2,5,8,11-tetraoxatridecan-13-oate

tert-Butyl 1-phenyl-2,5,8,11-tetraoxatridecan-13-oate

  • Catalogue No.:PA 27 0030759

  • CAS :

    1443467-88-6

  • Molecular Formula : C19H30O6

  • Molecular Weight : 354.44

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PA 27 0030760

1-Amino-3,6,9,12-tetraoxahexadecan-16-oic acid

1-Amino-3,6,9,12-tetraoxahexadecan-16-oic acid

  • Catalogue No.:PA 27 0030760

  • CAS :

    144598-03-8

  • Molecular Formula : C12H25NO6

  • Molecular Weight : 279.33

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PA 27 0030761

17-Amino-3,6,9,12,15-pentaoxaheptadecane-1-thiol hydrochloride

17-Amino-3,6,9,12,15-pentaoxaheptadecane-1-thiol hydrochloride

  • Catalogue No.:PA 27 0030761

  • CAS :

    1446256-16-1

  • Molecular Formula : C12H28ClNO5S

  • Molecular Weight : 333.87

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PA 27 0030762

(17-(diethoxyphosphoryl)-3,6,9,12,15-pentaoxaheptadecyl)phosphonic acid

(17-(diethoxyphosphoryl)-3,6,9,12,15-pentaoxaheptadecyl)phosphonic acid

  • Catalogue No.:PA 27 0030762

  • CAS :

    1446282-17-2

  • Molecular Formula : C16H36O11P2

  • Molecular Weight : 466.40

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PA 27 0030763

tert-Butyl 1-oxo-3,6,9,12,15-pentaoxaoctadecan-18-oate

tert-Butyl 1-oxo-3,6,9,12,15-pentaoxaoctadecan-18-oate

  • Catalogue No.:PA 27 0030763

  • CAS :

    1446282-23-0

  • Molecular Formula : C17H32O8

  • Molecular Weight : 364.44

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PA 27 0030764

(10-(Diethoxyphosphoryl)decyl)phosphonic acid

(10-(Diethoxyphosphoryl)decyl)phosphonic acid

  • Catalogue No.:PA 27 0030764

  • CAS :

    1446282-24-1

  • Molecular Formula : C14H32O6P2

  • Molecular Weight : 358.35

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030765

Tetraethyl (3,6,9,12,15-pentaoxaheptadecane-1,17-diyl)bis(phosphonate)

Tetraethyl (3,6,9,12,15-pentaoxaheptadecane-1,17-diyl)bis(phosphonate)

  • Catalogue No.:PA 27 0030765

  • CAS :

    1446282-28-5

  • Molecular Formula : C20H44O11P2

  • Molecular Weight : 522.51

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030766

Bis(2,3,5,6-tetrafluorophenyl) 3,3'-((oxybis(ethane-2,1-diyl))bis(oxy))dipropionate

Bis(2,3,5,6-tetrafluorophenyl) 3,3'-((oxybis(ethane-2,1-diyl))bis(oxy))dipropionate

  • Catalogue No.:PA 27 0030766

  • CAS :

    1446282-34-3

  • Molecular Formula : C22H18F8O7

  • Molecular Weight : 546.37

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PA 27 0030767

Tetraethyl hexane-1,6-diylbis(phosphoramidate)

Tetraethyl hexane-1,6-diylbis(phosphoramidate)

  • Catalogue No.:PA 27 0030767

  • CAS :

    1446282-35-4

  • Molecular Formula : C14H34N2O6P2

  • Molecular Weight : 388.38

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PA 27 0030768

(17-Bromo-3,6,9,12,15-pentaoxaheptadecyl)phosphonic acid

(17-Bromo-3,6,9,12,15-pentaoxaheptadecyl)phosphonic acid

  • Catalogue No.:PA 27 0030768

  • CAS :

    1446282-37-6

  • Molecular Formula : C12H26BrO8P

  • Molecular Weight : 409.21

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PA 27 0030769

tert-Butyl 3-(2-(2-(2-mercaptoethoxy)ethoxy)ethoxy)propanoate

tert-Butyl 3-(2-(2-(2-mercaptoethoxy)ethoxy)ethoxy)propanoate

  • Catalogue No.:PA 27 0030769

  • CAS :

    1446282-39-8

  • Molecular Formula : C13H26O5S

  • Molecular Weight : 294.41

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PA 27 0030770

Diethyl (17-bromo-3,6,9,12,15-pentaoxaheptadecyl)phosphonate

Diethyl (17-bromo-3,6,9,12,15-pentaoxaheptadecyl)phosphonate

  • Catalogue No.:PA 27 0030770

  • CAS :

    1446282-41-2

  • Molecular Formula : C16H34BrO8P

  • Molecular Weight : 465.32

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PA 27 0030771

1,16-Bis(2,3,5,6-tetrafluorophenyl) 4,7,10,13-tetraoxahexadecanedioate

1,16-Bis(2,3,5,6-tetrafluorophenyl) 4,7,10,13-tetraoxahexadecanedioate

  • Catalogue No.:PA 27 0030771

  • CAS :

    1446282-42-3

  • Molecular Formula : C24H22F8O8

  • Molecular Weight : 590.42

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PA 27 0030772

Bromo-PEG3-azide

Bromo-PEG3-azide

  • Catalogue No.:PA 27 0030772

  • CAS :

    1446282-43-4

  • Molecular Formula : C8H16BrN3O3

  • Molecular Weight : 282.14

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030773

Bromo-PEG2-phosphonic acid

Bromo-PEG2-phosphonic acid

  • Catalogue No.:PA 27 0030773

  • CAS :

    1446282-44-5

  • Molecular Formula : C6H14BrO5P

  • Molecular Weight : 277.05

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030774

23-Azido-3,6,9,12,15,18,21-heptaoxatricosanoic acid

23-Azido-3,6,9,12,15,18,21-heptaoxatricosanoic acid

  • Catalogue No.:PA 27 0030774

  • CAS :

    1446411-32-0

  • Molecular Formula : C16H31N3O9

  • Molecular Weight : 409.44

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PA 27 0030775

2,2-Dimethyl-4-oxo-3,8,11,14-tetraoxa-5-azahexadecan-16-yl methanesulfonate

2,2-Dimethyl-4-oxo-3,8,11,14-tetraoxa-5-azahexadecan-16-yl methanesulfonate

  • Catalogue No.:PA 27 0030775

  • CAS :

    1447797-72-9

  • Molecular Formula : C14H29NO8S

  • Molecular Weight : 371.45

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PA 27 0030776

tert-Butyl 17-azido-3,6,9,12,15-pentaoxaheptadecanoate

tert-Butyl 17-azido-3,6,9,12,15-pentaoxaheptadecanoate

  • Catalogue No.:PA 27 0030776

  • CAS :

    1448451-72-6

  • Molecular Formula : C16H31N3O7

  • Molecular Weight : 377.44

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PA 27 0030777

19-Bromo-1-phenyl-2,5,8,11,14,17-hexaoxanonadecane

19-Bromo-1-phenyl-2,5,8,11,14,17-hexaoxanonadecane

  • Catalogue No.:PA 27 0030777

  • CAS :

    1449202-44-1

  • Molecular Formula : C19H31BrO6

  • Molecular Weight : 435.36

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PA 27 0030778

17-Azido-3,6,9,12,15-pentaoxaheptadecane-1-thiol

17-Azido-3,6,9,12,15-pentaoxaheptadecane-1-thiol

  • Catalogue No.:PA 27 0030778

  • CAS :

    1449390-11-7

  • Molecular Formula : C12H25N3O5S

  • Molecular Weight : 323.41

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PA 27 0030779

2,5-Dioxo-1-pyrrolidinyl 4,7,10,13,16,19-hexaoxaeicosanoate

2,5-Dioxo-1-pyrrolidinyl 4,7,10,13,16,19-hexaoxaeicosanoate

  • Catalogue No.:PA 27 0030779

  • CAS :

    1449390-12-8

  • Molecular Formula : C18H31NO10

  • Molecular Weight : 421.44

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PA 27 0030780

2,5,8,11,14,17-Hexaoxaicosane-20-hydrazide

2,5,8,11,14,17-Hexaoxaicosane-20-hydrazide

  • Catalogue No.:PA 27 0030780

  • CAS :

    1449390-64-0

  • Molecular Formula : C14H30N2O7

  • Molecular Weight : 338.40

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PA 27 0030781

2,5,8,11,14-Pentaoxaheptadecane-17-hydrazide

2,5,8,11,14-Pentaoxaheptadecane-17-hydrazide

  • Catalogue No.:PA 27 0030781

  • CAS :

    1449390-65-1

  • Molecular Formula : C12H26N2O6

  • Molecular Weight : 294.35

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PA 27 0030782

3-oxo-1-phenyl-2,7,10,13,16,19-hexaoxa-4-azahenicosan-21-oic acid

3-oxo-1-phenyl-2,7,10,13,16,19-hexaoxa-4-azahenicosan-21-oic acid

  • Catalogue No.:PA 27 0030782

  • CAS :

    1449390-66-2

  • Molecular Formula : C20H31NO9

  • Molecular Weight : 429.47

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PA 27 0030783

1-Mercapto-3,6,9,12,15-pentaoxaoctadecan-18-oic acid

1-Mercapto-3,6,9,12,15-pentaoxaoctadecan-18-oic acid

  • Catalogue No.:PA 27 0030783

  • CAS :

    1449390-67-3

  • Molecular Formula : C13H26O7S

  • Molecular Weight : 326.40

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PA 27 0030784

m-PEG4-Hydrazide

m-PEG4-Hydrazide

  • Catalogue No.:PA 27 0030784

  • CAS :

    1449390-68-4

  • Molecular Formula : C10H22N2O5

  • Molecular Weight : 250.30

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PA 27 0030785

tert-Butyl 3-[2-(tert-butoxycarbonylamino)ethoxy]propionate

tert-Butyl 3-[2-(tert-butoxycarbonylamino)ethoxy]propionate

  • Catalogue No.:PA 27 0030785

  • CAS :

    145119-18-2

  • Molecular Formula : C14H27NO5

  • Molecular Weight : 289.37

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PA 27 0030786

3-(2-(2-(2-(Tosyloxy)ethoxy)ethoxy)ethoxy)propanoic acid

3-(2-(2-(2-(Tosyloxy)ethoxy)ethoxy)ethoxy)propanoic acid

  • Catalogue No.:PA 27 0030786

  • CAS :

    1453117-42-4

  • Molecular Formula : C16H24O8S

  • Molecular Weight : 376.42

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PA 27 0030787

Fluorescein-PEG4-azide

Fluorescein-PEG4-azide

  • Catalogue No.:PA 27 0030787

  • CAS :

    1454662-54-4

  • Molecular Formula : C31H33N5O9S

  • Molecular Weight : 651.69

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PA 27 0030788

2,5,8,11-Tetraoxatetradecan-14-ol

2,5,8,11-Tetraoxatetradecan-14-ol

  • Catalogue No.:PA 27 0030788

  • CAS :

    145526-76-7

  • Molecular Formula : C10H22O5

  • Molecular Weight : 222.28

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PA 27 0030789

3,6,9,12,15,18,21,24,27,30,33-Undecaoxapentatriacontane-1,35-diyl bis(4-methylbenzenesulfonate)

3,6,9,12,15,18,21,24,27,30,33-Undecaoxapentatriacontane-1,35-diyl bis(4-methylbenzenesulfonate)

  • Catalogue No.:PA 27 0030789

  • CAS :

    1456708-45-4

  • Molecular Formula : C38H62O17S2

  • Molecular Weight : 855.02

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PA 27 0030790

2-(Prop-2-yn-1-yloxy)ethyl 4-methylbenzenesulfonate

2-(Prop-2-yn-1-yloxy)ethyl 4-methylbenzenesulfonate

  • Catalogue No.:PA 27 0030790

  • CAS :

    145916-41-2

  • Molecular Formula : C12H14O4S

  • Molecular Weight : 254.30

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PA 27 0030791

2-(2-(2-(2-((Tetrahydro-2H-pyran-2-yl)oxy)ethoxy)ethoxy)ethoxy)ethyl methanesulfonate

2-(2-(2-(2-((Tetrahydro-2H-pyran-2-yl)oxy)ethoxy)ethoxy)ethoxy)ethyl methanesulfonate

  • Catalogue No.:PA 27 0030791

  • CAS :

    145927-73-7

  • Molecular Formula : C14H28O8S

  • Molecular Weight : 356.43

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PA 27 0030792

2-(2-(2-(2-(2-Azidoethoxy)ethoxy)ethoxy)ethoxy)tetrahydro-2H-pyran

2-(2-(2-(2-(2-Azidoethoxy)ethoxy)ethoxy)ethoxy)tetrahydro-2H-pyran

  • Catalogue No.:PA 27 0030792

  • CAS :

    145927-74-8

  • Molecular Formula : C13H25N3O5

  • Molecular Weight : 303.36

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PA 27 0030793

14-((Tetrahydro-2H-pyran-2-yl)oxy)-3,6,9,12-tetraoxatetradecan-1-ol

14-((Tetrahydro-2H-pyran-2-yl)oxy)-3,6,9,12-tetraoxatetradecan-1-ol

  • Catalogue No.:PA 27 0030793

  • CAS :

    146395-14-4

  • Molecular Formula : C15H30O7

  • Molecular Weight : 322.40

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PA 27 0030933

1-(2-Aminoethyl)-1H-pyrrole-2,5-dione 2,2,2-trifluoroacetate

1-(2-Aminoethyl)-1H-pyrrole-2,5-dione 2,2,2-trifluoroacetate

  • Catalogue No.:PA 27 0030933

  • CAS :

    146474-00-2

  • Molecular Formula : C8H9F3N2O4

  • Molecular Weight : 254.17

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PA 27 0030794

1-(2-(2-(2-Hydroxyethoxy)ethoxy)ethyl)-1H-pyrrole-2,5-dione

1-(2-(2-(2-Hydroxyethoxy)ethoxy)ethyl)-1H-pyrrole-2,5-dione

  • Catalogue No.:PA 27 0030794

  • CAS :

    146551-23-7

  • Molecular Formula : C10H15NO5

  • Molecular Weight : 229.23

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PA 27 0030795

2-(4-Oxoquinazolin-3(4H)-yl)acetic acid

2-(4-Oxoquinazolin-3(4H)-yl)acetic acid

  • Catalogue No.:PA 27 0030795

  • CAS :

    14663-53-7

  • Molecular Formula : C10H8N2O3

  • Molecular Weight : 204.19

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PA 27 0030796

(2R,4S)-1-(tert-butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylic acid

(2R,4S)-1-(tert-butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylic acid

  • Catalogue No.:PA 27 0030796

  • CAS :

    147266-92-0

  • Molecular Formula : C10H17NO5

  • Molecular Weight : 231.25

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PA 27 0030797

2,5-Dioxo-1-pyrrolidinyl 2,5,8,11,14-pentaoxapentadecanoate

2,5-Dioxo-1-pyrrolidinyl 2,5,8,11,14-pentaoxapentadecanoate

  • Catalogue No.:PA 27 0030797

  • CAS :

    147912-03-6

  • Molecular Formula : C14H23NO9

  • Molecular Weight : 349.34

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PA 27 0030798

2,5-Dioxopyrrolidin-1-yl 2-(2-azidoethoxy)acetate

2,5-Dioxopyrrolidin-1-yl 2-(2-azidoethoxy)acetate

  • Catalogue No.:PA 27 0030798

  • CAS :

    1480545-09-2

  • Molecular Formula : C8H10N4O5

  • Molecular Weight : 242.19

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PA 27 0030799

tert-Butyl 2-[2-(2-hydroxyethoxy)ethoxy]acetate

tert-Butyl 2-[2-(2-hydroxyethoxy)ethoxy]acetate

  • Catalogue No.:PA 27 0030799

  • CAS :

    149299-82-1

  • Molecular Formula : C10H20O5

  • Molecular Weight : 220.27

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PA 27 0030800

2-[2-(Benzyloxy)ethoxy]ethyl methanesulfonate

2-[2-(Benzyloxy)ethoxy]ethyl methanesulfonate

  • Catalogue No.:PA 27 0030800

  • CAS :

    150272-33-6

  • Molecular Formula : C12H18O5S

  • Molecular Weight : 274.33

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PA 27 0030801

tert-Butyl pent-4-yn-1-ylcarbamate

tert-Butyl pent-4-yn-1-ylcarbamate

  • Catalogue No.:PA 27 0030801

  • CAS :

    151978-50-6

  • Molecular Formula : C10H17NO2

  • Molecular Weight : 183.25

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030802

2-(2-(2-Bromoethoxy)ethoxy)tetrahydro-2H-pyran

2-(2-(2-Bromoethoxy)ethoxy)tetrahydro-2H-pyran

  • Catalogue No.:PA 27 0030802

  • CAS :

    152065-54-8

  • Molecular Formula : C9H17BrO3

  • Molecular Weight : 253.14

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030803

1-Acetoxy-2,5-dioxopyrrolidine-3-sulfonic acid

1-Acetoxy-2,5-dioxopyrrolidine-3-sulfonic acid

  • Catalogue No.:PA 27 0030803

  • CAS :

    152305-87-8

  • Molecular Formula : C6H7NO7S

  • Molecular Weight : 237.18

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Drug Reference Standards & Impurity Synthesis in India
PA 27 0030804

tert-Butyl 3-Aminopropanoate

tert-Butyl 3-Aminopropanoate

  • Catalogue No.:PA 27 0030804

  • CAS :

    15231-41-1

  • Molecular Formula : C7H15NO2

  • Molecular Weight : 145.20

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