Chemical identity

Acyclovir EP Impurity B / Guanine/ Valaciclovir EP Impurity A/ Valaciclovir Related Compound A/ Ganciclovir EP Impurity F/ Valganciclovir Related Compound B

CAS 73-40-5 · C5H5N5O

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-04960
PubChem CID135398634
NameAcyclovir EP Impurity B / Guanine/ Valaciclovir EP Impurity A/ Valaciclovir Related Compound A/ Ganciclovir EP Impurity F/ Valganciclovir Related Compound B
CAS RN73-40-5
Molecular formulaC5H5N5O
Molecular weight151.13 g/mol
IUPAC name2-Amino-1,7-dihydro-6H-purin-6-one
InChIKeyUYTPUPDQBNUYGX-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 135398634
Two-dimensional chemical structure of Acyclovir EP Impurity B / Guanine/ Valaciclovir EP Impurity A/ Valaciclovir Related Compound A/ Ganciclovir EP Impurity F/ Valganciclovir Related Compound B, CAS 73-40-5
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aromatic atoms. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESNc2nc1[nH]cnc1c(=O)[nH]2
InChINot listed
Formula from structureC5H5N5O
Molecular weight from structure151.13 g/mol

03India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 73-40-5 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 73-40-5 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

04Names and relationships

Associated parent compound

Acyclovir/ Valaciclovir/ Valganciclovir/ Ganciclovir

View API and impurity family

Other names

  • Acyclovir EP Impurity B
  • 2-Amino-6-hydroxypurine
  • 2-Aminohypoxanthine
  • 6H-Purin-6-one, 2-amino-1,7-dihydro-
  • 2-Amino-6-purinol
  • 2-amino-1H-purin-6(7H)-one
  • Hypoxanthine, 2-amino-
  • 6-Hydroxy-2-aminopurine
  • 2-amino-6-oxopurine
  • 2-amino-1,7-dihydropurin-6-one
  • 6H-purin-6-one, 2-amino-3,7-dihydro-
  • Guanine

Related records from the same parent family

05Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

06Sources