Abacavir Impurities

Dear Sir,

We have available Abacavir Impurities.

1. Impurity Name : Abacavir enantiomer
Chemical Name: (1R,4R)-4-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl}]-cyclopent-2-enyl}methanol.
CAS Number: 136470-79-6
Molecular Formula: C14H18N6O
Molecular Weight: 286.33

2. Impurity Name : Abacavir tertiary butyl Impurity
Chemical Name : (N6-cyclopropyl-9-((1R,4S)-4-{[(1,1-dimethylethyl)oxy]methyl}-2-cyclopenten-1-yl)-9H-purine-2,6-diamine
CAS Number: 163380-20-9
Molecular Formula: C11H12ClN5O
Molecular Weight: 246.27

3. Impurity Name : N6 -cyclopropyl-9H-purine-2,6-diamine
Molecular Formula: C8H10N6
Molecular Weight: 190.21

4. Impurity Name : Abacavir Related Compound C USP
Chemical Name : 1S,4R)-4-(2-Amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-methanol Hydrochloride
CAS Number: 172015-79-1
Molecular Formula: C11H13Cl2N5O
Molecular Weight: 302.16

5. Impurity Name : Abacavir Related Compound A USP
Synonyms: Descyclopropyl Abacavir
Chemical Name : (1S,4R)-4-(2,6-Diamino-9H-purin-9-yl)-2-cyclopentene-1-methanol
CAS Number: 124752-25-6
Molecular Formula: C11H14N6O
Molecular Weight: 246.27

6. Impurity Name : Abacavir Related Compound B USP
Chemical Name (1S-cis)-4-[(2,5-Diamino-6-chloro-4-pyrimidinyl)amino]-2-cyclopentene-1-methanol
CAS Number: 141271-11-6
Molecular Formula: C10H14ClN5O
Molecular Weight: 255.7

We will provide CoA, HPLC, Mass and NMR along with material.

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