dapsone and its Impurities

Dapsone, also known as diaminodiphenyl sulfone. It is used with pyrimethamine in the treatment of malaria. A sulfone active against a wide range of bacteria but mainly employed for its actions against mycobacterium leprae.. Reference standards of Dapsone API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 60 results for dapsone Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 04 84000

Dapsone

Dapsone

  • Catalogue No.:PA 04 84000

  • CAS :

    80-08-0

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.30

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84510

Dapsone - Impurity A

4-(4-Aminobenzene-1-sulfonyl)phenol

  • Catalogue No.:PA 04 84510

  • CAS :

    25963-47-7

  • Molecular Formula : C12H11NO3S

  • Molecular Weight : 249.29

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84520

Dapsone - Impurity D

2-(4-Aminobenzene-1-sulfonyl)aniline

  • Catalogue No.:PA 04 84520

  • CAS :

    27147-69-9

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84530

Dapsone - Impurity B

4-(Benzenesulfonyl)aniline

  • Catalogue No.:PA 04 84530

  • CAS :

    7019-01-4

  • Molecular Formula : C12H11NO2S

  • Molecular Weight : 233.29

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84540

Dapsone - Impurity E

4-(4-Chlorobenzene-1-sulfonyl)aniline

  • Catalogue No.:PA 04 84540

  • CAS :

    7146-68-1

  • Molecular Formula : C12H10ClNO2S

  • Molecular Weight : 267.73

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84550

Dapsone - Impurity C

14,74-Diamino-2λ6,6λ6-4-oxa-2,6-dithia-1,7(1),3,5(1,4)-tetrabenzenaheptaphane-2,2,6,6-tetrone

  • Catalogue No.:PA 04 84550

  • CAS :

    54616-64-7

  • Molecular Formula : C24H20N2O5S2

  • Molecular Weight : 480.56

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84560

Dapsone - Impurity F

1-(Benzenesulfonyl)-4-chlorobenzene

  • Catalogue No.:PA 04 84560

  • CAS :

    80-00-2

  • Molecular Formula : C12H9ClO2S

  • Molecular Weight : 252.72

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84570

N-Acetyl Dapsone

N-Acetyl Dapsone

  • Catalogue No.:PA 04 84570

  • CAS :

    565-20-8

  • Molecular Formula : C14H14N2O3S

  • Molecular Weight : 290.34

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84580

Bis(4-nitrophenyl) Sulfone

Bis(4-nitrophenyl) Sulfone

  • Catalogue No.:PA 04 84580

  • CAS :

    1156-50-9

  • Molecular Formula : C12H8N2O6S

  • Molecular Weight : 308.27

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84590

4-(4-Nitrophenyl)sulfinylaniline

4-(4-Nitrophenyl)sulfinylaniline

  • Catalogue No.:PA 04 84590

  • CAS :

    5461-23-4

  • Molecular Formula : C12H10N2O3S

  • Molecular Weight : 262.28

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84600

4-(4-Nitrophenyl)sulfonylaniline

4-(4-Nitrophenyl)sulfonylaniline

  • Catalogue No.:PA 04 84600

  • CAS :

    1948-92-1

  • Molecular Formula : C12H10N2O4S

  • Molecular Weight : 278.28

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84610

4-Chloronitrobenzene

4-Chloronitrobenzene

  • Catalogue No.:PA 04 84610

  • CAS :

    100-00-5

  • Molecular Formula : C6H4ClNO2

  • Molecular Weight : 157.55

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84620

4,4'-Sulfinylbis(nitrobenzene)

4,4'-Sulfinylbis(nitrobenzene)

  • Catalogue No.:PA 04 84620

  • CAS :

    1774-38-5

  • Molecular Formula : C12H8N2O5S

  • Molecular Weight : 292.27

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84630

4,4'-Sulfinyldianiline

4,4'-Sulfinyldianiline

  • Catalogue No.:PA 04 84630

  • CAS :

    119-59-5

  • Molecular Formula : C12H12N2OS

  • Molecular Weight : 232.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84640

Bis(2-nitrophenyl)sulfane

Bis(2-nitrophenyl)sulfane

  • Catalogue No.:PA 04 84640

  • CAS :

    22100-66-9

  • Molecular Formula : C12H8N2O4S

  • Molecular Weight : 276.27

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84650

2,2'-Sulfonylbis(nitrobenzene)

2,2'-Sulfonylbis(nitrobenzene)

  • Catalogue No.:PA 04 84650

  • CAS :

    14665-52-2

  • Molecular Formula : C12H8N2O6S

  • Molecular Weight : 308.27

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84660

2,2'-Sulfonyldianiline

2,2'-Sulfonyldianiline

  • Catalogue No.:PA 04 84660

  • CAS :

    53347-49-2

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84670

4-(Phenylsulfonyl)benzene-1,3-diamine

4-(Phenylsulfonyl)benzene-1,3-diamine

  • Catalogue No.:PA 04 84670

  • CAS :

    116435-84-8

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84680

4,4'-Dichlorodiphenyl Sulfone

4,4'-Dichlorodiphenyl Sulfone

  • Catalogue No.:PA 04 84680

  • CAS :

    80-07-9

  • Molecular Formula : C12H8Cl2O2S

  • Molecular Weight : 287.16

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84690

Bis(4-hydroxyphenyl) Sulfone

Bis(4-hydroxyphenyl) Sulfone

  • Catalogue No.:PA 04 84690

  • CAS :

    80-09-1

  • Molecular Formula : C12H10O4S

  • Molecular Weight : 250.27

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84700

Dapsone Hydroxylamine

Dapsone Hydroxylamine

  • Catalogue No.:PA 04 84700

  • CAS :

    32695-27-5

  • Molecular Formula : C12H12N2O3S

  • Molecular Weight : 264.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84710

Dapsone Dimer Impurity

Dapsone Dimer Impurity

  • Catalogue No.:PA 04 84710

  • CAS :

    2514651-21-7

  • Molecular Formula : C24H22N4O4S2

  • Molecular Weight : 494.59

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84720

3,3'-Sulfonyldianiline

3,3'-Sulfonyldianiline

  • Catalogue No.:PA 04 84720

  • CAS :

    599-61-1

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84730

4-((2-Chlorophenyl)sulfonyl)aniline

4-((2-Chlorophenyl)sulfonyl)aniline

  • Catalogue No.:PA 04 84730

  • CAS :

    148301-96-6

  • Molecular Formula : C12H10ClNO2S

  • Molecular Weight : 267.73

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84740

Bis(4-((4-aminophenyl)sulfonyl)phenyl)amine

Bis(4-((4-aminophenyl)sulfonyl)phenyl)amine

  • Catalogue No.:PA 04 84740

  • CAS :

    NA

  • Molecular Formula : C24H21N3O4S2

  • Molecular Weight : 479.57

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84750

4-((3-Chlorophenyl)sulfonyl)aniline

4-((3-Chlorophenyl)sulfonyl)aniline

  • Catalogue No.:PA 04 84750

  • CAS :

    90309-26-5

  • Molecular Formula : C12H10ClNO2S

  • Molecular Weight : 267.73

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84760

3-((4-Chlorophenyl)sulfonyl)aniline

3-((4-Chlorophenyl)sulfonyl)aniline

  • Catalogue No.:PA 04 84760

  • CAS :

    23929-35-3

  • Molecular Formula : C12H10ClNO2S

  • Molecular Weight : 267.73

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Drug Reference Standards & Impurity Synthesis in India
PA STI 002240

N-Acetyl Dapsone-d8 (Major)

N-Acetyl Dapsone-d8 (Major)

  • Catalogue No.:PA STI 002240

  • CAS :

    1215635-13-4

  • Molecular Formula : C14H6D8N2O3S

  • Molecular Weight : 298.39

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Drug Reference Standards & Impurity Synthesis in India
PA STI 024310

Dapsone-d4

Dapsone-d4

  • Catalogue No.:PA STI 024310

  • CAS :

    1346602-12-7

  • Molecular Formula : C12H8D4N2O2S

  • Molecular Weight : 252.33

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Drug Reference Standards & Impurity Synthesis in India
PA STI 024320

Dapsone-15N2

Dapsone-15N2

  • Catalogue No.:PA STI 024320

  • CAS :

    287476-19-1

  • Molecular Formula : C12H1215N2O2S

  • Molecular Weight : 250.29

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Drug Reference Standards & Impurity Synthesis in India
PA STI 024330

Dapsone-D8 (Major)

Dapsone-D8 (Major)

  • Catalogue No.:PA STI 024330

  • CAS :

    557794-38-4

  • Molecular Formula : C12H4D8N2O2S

  • Molecular Weight : 256.35

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Drug Reference Standards & Impurity Synthesis in India
PA STI 024340

Dapsone Hydroxylamine-d4

Dapsone Hydroxylamine-d4

  • Catalogue No.:PA STI 024340

  • CAS :

    1330185-26-6

  • Molecular Formula : C12H8D4N2O3S

  • Molecular Weight : 268.32

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Drug Reference Standards & Impurity Synthesis in India
PA STI 029290

4,4'-Di-N-acetylamino-diphenylsulfone-d8

4,4'-Di-N-acetylamino-diphenylsulfone-d8

  • Catalogue No.:PA STI 029290

  • CAS :

    557794-37-3

  • Molecular Formula : C16H8D8N2O4S

  • Molecular Weight : 340.42

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Drug Reference Standards & Impurity Synthesis in India
PA STI 029300

4,4'-Di-N-acetylamino-diphenylsulfoxide-d8

4,4'-Di-N-acetylamino-diphenylsulfoxide-d8

  • Catalogue No.:PA STI 029300

  • CAS :

    557794-36-2

  • Molecular Formula : C16H8D8N2O3S

  • Molecular Weight : 324.42

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Drug Reference Standards & Impurity Synthesis in India
PA STI 067910

4-Nitro-4'-acetylaminodiphenyl-d4 Sulfone

4-Nitro-4'-acetylaminodiphenyl-d4 Sulfone

  • Catalogue No.:PA STI 067910

  • CAS :

    1346602-08-1

  • Molecular Formula : C14H8D4N2O5S

  • Molecular Weight : 324.35

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Drug Reference Standards & Impurity Synthesis in India
PA STI 067920

4-Nitro-4'-aminodiphenyl-d4 Sulfone

4-Nitro-4'-aminodiphenyl-d4 Sulfone

  • Catalogue No.:PA STI 067920

  • CAS :

    1346601-85-1

  • Molecular Formula : C12H6D4N2O4S

  • Molecular Weight : 282.31

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Drug Reference Standards & Impurity Synthesis in India
PA USP1164008

Dapsone (1164008)

Dapsone (1164008)

  • Catalogue No.:PA USP1164008

  • CAS :

    80-08-0

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BP102RB

dapsone (102RB)

dapsone (102RB)

  • Catalogue No.:PA BP102RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA ICRS0265

Dapsone (ICRS0265)

Dapsone (ICRS0265)

  • Catalogue No.:PA ICRS0265

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPD0100000

Dapsone (D0100000)

Dapsone (D0100000)

  • Catalogue No.:PA EPD0100000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PAI 04 015010

(Oxybis(4,1-phenylene))bis((4-nitrophenyl)sulfane)

(Oxybis(4,1-phenylene))bis((4-nitrophenyl)sulfane)

  • Catalogue No.:PAI 04 015010

  • CAS :

    96847-79-9

  • Molecular Formula : C24H16N2O5S2

  • Molecular Weight : 476.52

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Drug Reference Standards & Impurity Synthesis in India
PAI 04 015020

4,4'-Oxybis(((4-nitrophenyl)sulfonyl)benzene)

4,4'-Oxybis(((4-nitrophenyl)sulfonyl)benzene)

  • Catalogue No.:PAI 04 015020

  • CAS :

    54617-07-1

  • Molecular Formula : C24H16N2O9S2

  • Molecular Weight : 540.52

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 163 14

Dapsone (IPRS/163/14)-from IPC

Dapsone (IPRS/163/14)-from IPC

  • Catalogue No.:PA IPIPRS 163 14

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 04 84770

N-[4-[(4-Aminophenyl)sulfonyl]phenyl]formamide

N-[4-[(4-Aminophenyl)sulfonyl]phenyl]formamide

  • Catalogue No.:PA 04 84770

  • CAS :

    21501-24-6

  • Molecular Formula : C13H12N2O3S

  • Molecular Weight : 276.31

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841000

3-((4-aminophenyl)sulfonyl)aniline

3-((4-aminophenyl)sulfonyl)aniline

  • Catalogue No.:PA 04 0841000

  • CAS :

    34262-32-3

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088960

N-(4-((4-aminophenyl-2,3,5,6-d4)sulfonyl)phenyl)acetamide

N-(4-((4-aminophenyl-2,3,5,6-d4)sulfonyl)phenyl)acetamide

  • Catalogue No.:PA STI 088960

  • CAS :

    2070015-08-4

  • Molecular Formula : C14H10D4N2O3S

  • Molecular Weight : 294.36

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841001

Bis(m-Chlorophenyl) sulfone

Bis(m-Chlorophenyl) sulfone

  • Catalogue No.:PA 04 0841001

  • CAS :

    5097-16-5

  • Molecular Formula : C12H8Cl2O2S

  • Molecular Weight : 287.15

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841002

Bis(2-Chlorophenyl)sulfane

Bis(2-Chlorophenyl)sulfane

  • Catalogue No.:PA 04 0841002

  • CAS :

    5097-95-0

  • Molecular Formula : C12H8Cl2S

  • Molecular Weight : 255.16

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841003

1-Chloro-2-((4-chlorophenyl)sulfonyl)benzene

1-Chloro-2-((4-chlorophenyl)sulfonyl)benzene

  • Catalogue No.:PA 04 0841003

  • CAS :

    38980-51-7

  • Molecular Formula : C12H8Cl2O2S

  • Molecular Weight : 287.15

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841004

1-Chloro-3-((4-chlorophenyl)sulfonyl)benzene

1-Chloro-3-((4-chlorophenyl)sulfonyl)benzene

  • Catalogue No.:PA 04 0841004

  • CAS :

    38980-69-7

  • Molecular Formula : C12H8Cl2O2S

  • Molecular Weight : 287.15

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841005

4,4'-Sulfonylbis(nitrosobenzene)

4,4'-Sulfonylbis(nitrosobenzene)

  • Catalogue No.:PA 04 0841005

  • CAS :

    NA

  • Molecular Formula : C12H8N2O4S

  • Molecular Weight : 276.27

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841006

N,N'-(Sulfonylbis(4,1-phenylene))bis(hydroxylamine)

N,N'-(Sulfonylbis(4,1-phenylene))bis(hydroxylamine)

  • Catalogue No.:PA 04 0841006

  • CAS :

    36679-40-0

  • Molecular Formula : C12H12N2O4S

  • Molecular Weight : 280.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841007

2-6-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

2-6-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

  • Catalogue No.:PA 04 0841007

  • CAS :

    NA

  • Molecular Formula : C24H32N2O12S

  • Molecular Weight : 572.58

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841008

4,4'-(Diazene-1,2-diylbis(4,1-phenylenesulfonyl))dianiline

4,4'-(Diazene-1,2-diylbis(4,1-phenylenesulfonyl))dianiline

  • Catalogue No.:PA 04 0841008

  • CAS :

    2755500-71-9

  • Molecular Formula : C24H20N4O4S2

  • Molecular Weight : 492.57

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841009

4-((2-Nitrophenyl)sulfonyl)aniline

4-((2-Nitrophenyl)sulfonyl)aniline

  • Catalogue No.:PA 04 0841009

  • CAS :

    107114-81-8

  • Molecular Formula : C12H10N2O4S

  • Molecular Weight : 278.28

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841010

N-(4-((2-Aminophenyl)sulfonyl)phenyl)acetamide

N-(4-((2-Aminophenyl)sulfonyl)phenyl)acetamide

  • Catalogue No.:PA 04 0841010

  • CAS :

    18514-07-3

  • Molecular Formula : C14H14N2O3S

  • Molecular Weight : 290.34

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841011

4-(Benzenesulfonyl)benzene-1,2-diamine

4-(Benzenesulfonyl)benzene-1,2-diamine

  • Catalogue No.:PA 04 0841011

  • CAS :

    54029-75-3

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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PA 04 0841012

1-Chloro-2-((3-chlorophenyl)sulfonyl)benzene

1-Chloro-2-((3-chlorophenyl)sulfonyl)benzene

  • Catalogue No.:PA 04 0841012

  • CAS :

    92576-97-1

  • Molecular Formula : C12H8Cl2O2S

  • Molecular Weight : 287.15

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841013

2-((3-Aminophenyl)sulfonyl)aniline

2-((3-Aminophenyl)sulfonyl)aniline

  • Catalogue No.:PA 04 0841013

  • CAS :

    34262-29-8

  • Molecular Formula : C12H12N2O2S

  • Molecular Weight : 248.3

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Drug Reference Standards & Impurity Synthesis in India
PA 04 0841014

1,2-Bis(2-nitrophenyl)disulfane

1,2-Bis(2-nitrophenyl)disulfane

  • Catalogue No.:PA 04 0841014

  • CAS :

    1155-00-6

  • Molecular Formula : C12H8N2O4S2

  • Molecular Weight : 308.33

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