Phenobarbital-impurities | Pharmaffiliates

phenobarbital and its Impurities

A barbiturate drug which is a selective depressant of CNS. It is used for the treatment of epilepsy, anxiety and s;eep disorders. Overdose causes serious side effects.Reference standards of Phenobarbital API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 7 results for phenobarbital Impurities
PA 16 18010

Phenobarbital - Impurity A

(5RS)-5-Ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one


  • Catalogue No.:PA 16 18010

  • CAS :

    69125-70-8

  • Molecular Formula : C12H14N4O

  • Molecular Weight : 230.27

PA 16 18020

Phenobarbital - Impurity B

(5RS)-5-Ethyl-6-imino-5-phenyldihydropyrimidine-2,4(1H,3H)-dione


  • Catalogue No.:PA 16 18020

  • CAS :

    58042-96-9

  • Molecular Formula : C12H13N3O2

  • Molecular Weight : 231.25

PA STI 072800

2-Phenylbutyric Acid-d5 Methyl Ester

2-Phenylbutyric Acid-d5 Methyl Ester


  • Catalogue No.:PA STI 072800

  • CAS :

    1794940-35-4

  • Molecular Formula : C11H9D5O2

  • Molecular Weight : 183.26

Phenobarbital impurity A (Y0001350)

Phenobarbital impurity A (Y0001350)


  • Catalogue No.:PA EPY0001350

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Phenobarbital impurity B (Y0001351)

Phenobarbital impurity B (Y0001351)


  • Catalogue No.:PA EPY0001351

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 16 0181001

N-Carbamimidoyl-2-phenylbutanamide

N-Carbamimidoyl-2-phenylbutanamide


  • Catalogue No.:PA 16 0181001

  • CAS :

    2386917-97-9

  • Molecular Formula : C11H15N3O

  • Molecular Weight : 205.26

PA STI 088805

4-Hydroxy Phenobarbital-d5

4-Hydroxy Phenobarbital-d5


  • Catalogue No.:PA STI 088805

  • CAS :

    111342-31-5

  • Molecular Formula : C12H7D5N2O4

  • Molecular Weight : 253.27