Chemical identity

Pravastatin EP Impurity E / 3""-(S)-Hydroxy Pravastatin(Free Base)

CAS 136657-41-5 · C23H36O8

01Identity

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

Lazychem IDLC-25823
PubChem CID11305255
NamePravastatin EP Impurity E / 3""-(S)-Hydroxy Pravastatin(Free Base)
CAS RN136657-41-5
Molecular formulaC23H36O8
Molecular weight440.53 g/mol
IUPAC name(3R,5R)-3,5-dihydroxy-7-((1S,2S,6S,8S,8aR)-6-hydroxy-8-(((2S,3S)-3-hydroxy-2-methylbutanoyl)oxy)-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)heptanoic acid
InChIKeyASZMMNUWSMFMJO-FBIVGABFSA-N

02Structure identifiers

2D structurePubChem CID 11305255
Two-dimensional chemical structure of Pravastatin EP Impurity E / 3""-(S)-Hydroxy Pravastatin(Free Base), CAS 136657-41-5
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aliphatic carbon, has 9 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres9
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@H]1C=CC2=C[C@H](C[C@@H]([C@@H]2[C@H]1CC[C@H](C[C@H](CC(=O)O)O)O)OC(=O)[C@@H](C)[C@H](C)O)O
InChINot listed
Formula from structureC23H36O8
Molecular weight from structure440.53 g/mol

03Stereochemistry

The published structure contains 9 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres9Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 512Before symmetry reduction

Published same-connectivity configurations

2 records

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India 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 136657-41-5 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 136657-41-5 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.

05Names and relationships

Associated parent compound

Pravastatin

View API and impurity family

Other names

  • Pravastatin EP Impurity E (Free Base)
  • 3"-(S)-Hydroxy Pravastatin(Free Base)
  • 3-Hydroxypravastatin, (S)-
  • 136657-41-5
  • 3''-(S)-Hydroxypravastatin
  • 906EM34IX1
  • (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6-hydroxy-8-[(2S,3S)-3-hydroxy-2-methylbutanoyl]oxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid
  • (3R,5R)-3,5-Dihydroxy-7-((1S,2S,6S,8S,8aR)-6-hydroxy-8-(((2S,3S)3-hydroxy-2-methylbutanoyl)oxy)-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)heptanoic acid
  • UNII-906EM34IX1
  • Pravastatin EP Impurity E
  • (S)-3-hydroxypravastatin
  • Pravastatin sodium specified impurity E [EP]

Related records from the same parent family

06Documented 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.

07Sources