Chemical identity

Pravastatin EP Impurity G (Free Base) / Pravastatin Oxidation Impurity

CAS 136590-28-8 · C18H24O5

01Identity

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

Lazychem IDLC-25827
PubChem CID58746970
NamePravastatin EP Impurity G (Free Base) / Pravastatin Oxidation Impurity
CAS RN136590-28-8
Molecular formulaC18H24O5
Molecular weight320.38 g/mol
IUPAC name(3R,5R)-3,5-dihydroxy-7-((1S,2S)-6-hydroxy-2-methyl-1,2-dihydronaphthalen-1-yl)heptanoic acid
InChIKeySTGSFABFWFDJSQ-SRMUXQRQSA-N

02Structure identifiers

2D structurePubChem CID 58746970
2D structure: Pravastatin EP Impurity G (Free Base) / Pravastatin Oxidation Impurity, CAS 136590-28-8
Structure of Pravastatin EP Impurity G (Free Base) / Pravastatin Oxidation Impurity (CAS 136590-28-8). LazyChem record. Source identity: PubChem CID 58746970. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC18H24O5
InChIKeySTGSFABFWFDJSQ-SRMUXQRQSA-N
Ring count2
Defined stereocentres4
Unassigned stereocentres0
SMILESC[C@H]1C=CC2=C([C@H]1CC[C@H](C[C@H](CC(=O)O)O)O)C=CC(=C2)O
InChIInChI=1S/C18H24O5/c1-11-2-3-12-8-13(19)5-7-17(12)16(11)6-4-14(20)9-15(21)10-18(22)23/h2-3,5,7-8,11,14-16,19-21H,4,6,9-10H2,1H3,(H,22,23)/t11-,14+,15+,16-/m0/s1

03Stereochemistry

The published structure contains 4 defined and 0 unassigned tetrahedral stereocentres. The exact wedge-and-dash depiction is shown above.

Defined stereocentres42D structure
Unassigned stereocentres02D structure
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 16Before symmetry reduction

Published same-connectivity configurations

1 record

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.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

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 / RCSNOT FOUND IN REVIEWED ENTRIESCAS 136590-28-8 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated.
SCOMETNOT FOUND IN REVIEWED CAS ENTRIESCAS 136590-28-8 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated.

05Names and relationships

Associated parent compound

Pravastatin

View API and impurity family

Other names

  • Pravastatin EP Impurity G (Free Base)
  • Pravastatin Oxidation Impurity
  • ((1S,2S)-6-Hydroxy-2-methyl-1,2-dihydronaphthalen-1-yl)heptanoic Acid, (3R,5R)-3,5-dihydroxy-7-
  • (3R,5R)-3,5-Dihydroxy-7-[(1S,2S)-6-hydroxy-2-methyl-1,2-dihydronaphthalen-1-yl]heptanoic Acid
  • (βR,δR,1S,2S)-1,2-Dihydro-β,δ,6-trihydroxy-2-methyl-1-naphthaleneheptanoic Acid
  • Desacyl-dehydropravastatin
  • UNII-4411KHU5T3
  • Pravastatin sodium specified impurity G [EP]
  • R 195
  • 1-Naphthaleneheptanoic acid, 1,2-dihydro-beta,delta,6-trihydroxy-2-methyl-, (betaR,deltaR,1S,2S)-

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