Lorazepam-impurities | Pharmaffiliates

lorazepam and its Impurities

Lorazepam used commonly as a sedative and anxiolytic. It is a short-acting and rapidly cleared benzodiazepine. It is available as a generic medication. Reference standards of Lorazepam API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 18 results for lorazepam Impurities
PA 12 26010

Lorazepam - Impurity A

(2-Amino-5-chlorophenyl)(2-chlorophenyl)methanone


  • Catalogue No.:PA 12 26010

  • CAS :

    2958-36-3

  • Molecular Formula : C13H9Cl2NO

  • Molecular Weight : 266.12

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PA 12 26030

Lorazepam - Impurity C

7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-4-oxide-2H-1,4- benzodiazepin-2-one


  • Catalogue No.:PA 12 26030

  • CAS :

    2955-37-5

  • Molecular Formula : C15H10Cl2N2O2

  • Molecular Weight : 321.16

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PA 12 26050

Lorazepam - Impurity E

[6-Chloro-4-(2-chlorophenyl)-2-quinazolin]carboxaldehyde


  • Catalogue No.:PA 12 26050

  • CAS :

    93955-15-8

  • Molecular Formula : C15H8Cl2N2O

  • Molecular Weight : 303.14

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PAI 12 009020

2-(Amino(2-chlorophenyl)methyl)-4-chloroaniline


  • Catalogue No.:PAI 12 009020

  • CAS :

    NA

  • Molecular Formula : C13H12Cl2N2

  • Molecular Weight : 267.15

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PA 12 26040

Lorazepam - Impurity D

7-Chloro-5-(2-chlorophenyl)-4,5-dihydro-2H-1,4- benzodiazepin-2,3-(1H)-dione


  • Catalogue No.:PA 12 26040

  • CAS :

    54699-91-1

  • Molecular Formula : C15H10Cl2N2O2

  • Molecular Weight : 321.16

PA EPY0000718

Lorazepam impurity D (Y0000718)

Lorazepam impurity D (Y0000718)


  • Catalogue No.:PA EPY0000718

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1370327

Lorazepam Related Compound A (7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-acetoxy-2H-1,4-benzodiazepi (1370327)

Lorazepam Related Compound A (7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-acetoxy-2H-1,4-benzodiazepi (1370327)


  • Catalogue No.:PA USP1370327

  • CAS :

    2848-96-6

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1370338

Lorazepam Related Compound B (2-Amino-2',5-dichlorobenzophenone) (1370338)

Lorazepam Related Compound B (2-Amino-2',5-dichlorobenzophenone) (1370338)


  • Catalogue No.:PA USP1370338

  • CAS :

    2958-36-3

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1370349

Lorazepam Related Compound C (6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxaldehyde) (1370349)

Lorazepam Related Compound C (6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxaldehyde) (1370349)


  • Catalogue No.:PA USP1370349

  • CAS :

    93955-15-8

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1370350

Lorazepam Related Compound D (6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxylic Acid) (1370350)

Lorazepam Related Compound D (6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxylic Acid) (1370350)


  • Catalogue No.:PA USP1370350

  • CAS :

    54643-79-7

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1370360

Lorazepam Related Compound E (6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol) (1370360)

Lorazepam Related Compound E (6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol) (1370360)


  • Catalogue No.:PA USP1370360

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PAI 12 009010

(E)-(2-Amino-5-chlorophenyl)(2-chlorophenyl)methanone Oxime


  • Catalogue No.:PAI 12 009010

  • CAS :

    NA

  • Molecular Formula : C13H10Cl2N2O

  • Molecular Weight : 281.14

PA 12 0261001

6-Chloro-4-(2-chlorophenyl)-2-quinazoline- methanol

6-Chloro-4-(2-chlorophenyl)-2-quinazoline- methanol


  • Catalogue No.:PA 12 0261001

  • CAS :

    773871-49-1

  • Molecular Formula : C15H10Cl2N2O

  • Molecular Weight : 305.16

PA 12 0261002

6-Chloro-4-(2-chlorophenyl)-2(1H)- quinazolinone

6-Chloro-4-(2-chlorophenyl)-2(1H)- quinazolinone


  • Catalogue No.:PA 12 0261002

  • CAS :

    23441-87-4

  • Molecular Formula : C14H8Cl2N2O

  • Molecular Weight : 291.13

PA 12 0261003

6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol

6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol


  • Catalogue No.:PA 12 0261003

  • CAS :

    773871-49-1

  • Molecular Formula : C15H10Cl2N2O

  • Molecular Weight : 305.16

PAI 12 009021

2-Chloro-N-(4-chloro-2-(2-chlorobenzoyl)phenyl)acetamide

2-Chloro-N-(4-chloro-2-(2-chlorobenzoyl)phenyl)acetamide


  • Catalogue No.:PAI 12 009021

  • CAS :

    14405-03-9

  • Molecular Formula : C15H10Cl3NO2

  • Molecular Weight : 342.6

PAI 12 009022

N-(4-Chloro-2-(2-chlorobenzoyl)phenyl)-2-iodoacetamide

N-(4-Chloro-2-(2-chlorobenzoyl)phenyl)-2-iodoacetamide


  • Catalogue No.:PAI 12 009022

  • CAS :

    152453-65-1

  • Molecular Formula : C15H10Cl2INO2

  • Molecular Weight : 434.05

PAI 12 009023

N-(4-Chloro-2-(2-chlorobenzoyl)phenyl)-2-(hydroxyamino)acetamide

N-(4-Chloro-2-(2-chlorobenzoyl)phenyl)-2-(hydroxyamino)acetamide


  • Catalogue No.:PAI 12 009023

  • CAS :

    NA

  • Molecular Formula : C15H12Cl2N2O3

  • Molecular Weight : 339.17