Chemical identity

Retinol EP Impurity C / Vitamin A EP Impurity C / Retro-Vitamin A

CAS 16729-22-9 · C20H30O

01Identity

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

Lazychem IDLC-26917
PubChem CID5378255
NameRetinol EP Impurity C / Vitamin A EP Impurity C / Retro-Vitamin A
CAS RN16729-22-9
Molecular formulaC20H30O
Molecular weight286.45 g/mol
IUPAC name(3E,5E,7E,9Z)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-2-enylidene)nona-3,5,7-trien-1-ol
InChIKeyLWSSYLJSLZBNKE-YIAYGWAFSA-N

02Structure identifiers

2D structurePubChem CID 5378255
Two-dimensional chemical structure of Retinol EP Impurity C / Vitamin A EP Impurity C / Retro-Vitamin A, CAS 16729-22-9
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 1 ring, includes aliphatic carbon. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count1
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC\1=CCCC(/C1=C/C=C(\C)/C=C/C=C(\C)/CCO)(C)C
InChINot listed
Formula from structureC20H30O
Molecular weight from structure286.45 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 16729-22-9 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 16729-22-9 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

Vitamin A; Retinol

View API and impurity family

Other names

  • Retinol EP Impurity C
  • Vitamin A EP Impurity C
  • Retro-Vitamin A
  • 4,14-Retro-retinol
  • 16729-22-9
  • DTXSID80418821
  • RefChem:284383
  • DTXCID40369668
  • LWSSYLJSLZBNKE-YIAYGWAFSA-N
  • all-trans-Retro Retinol
  • (3E,5E,7E,9Z)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex-2-en-1-ylidene)nona-3,5,7-trien-1-ol
  • Retroretinol

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