Chemical identity

Ascorbic Acid EP Impurity G

CAS 66757-69-5 · C6H6O7

01Identity

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

Lazychem IDLC-06842
PubChem CID54707215
NameAscorbic Acid EP Impurity G
CAS RN66757-69-5
Molecular formulaC6H6O7
Molecular weight190.11 g/mol
IUPAC name(R)-2-((R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetic acid
InChIKeyLMMOGBZPBLQFHK-DMTCNVIQSA-N

02Structure identifiers

2D structurePubChem CID 54707215
2D structure: Ascorbic Acid EP Impurity G, CAS 66757-69-5
Structure of Ascorbic Acid EP Impurity G (CAS 66757-69-5). LazyChem record. Source identity: PubChem CID 54707215. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC6H6O7
InChIKeyLMMOGBZPBLQFHK-DMTCNVIQSA-N
Ring count1
Defined stereocentres2
Unassigned stereocentres0
SMILES[C@H]1(C(=C(C(=O)O1)O)O)[C@H](C(=O)O)O
InChIInChI=1S/C6H6O7/c7-1-2(8)6(12)13-4(1)3(9)5(10)11/h3-4,7-9H,(H,10,11)/t3-,4+/m1/s1

03Stereochemistry

The published structure contains 2 defined and 0 unassigned tetrahedral stereocentres. The exact wedge-and-dash depiction is shown above.

Defined stereocentres22D structure
Unassigned stereocentres02D structure
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 4Before 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 66757-69-5 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 66757-69-5 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated.

05Names and relationships

Associated parent compound

Ascorbic Acid

View API and impurity family

Other names

  • L-threo-Hex-2-enaric acid 1,4-Lactone
  • (2R)-2-[(2R)-3,4-dihydroxy-5-oxo-2H-furan-2-yl]-2-hydroxyacetic acid
  • (R)-2-((R)-3,4-Dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetic acid
  • (2R)-2-((2R)-3,4-Dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetic acid
  • 2-((2R)-3,4-Dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetic acid, (2R)-
  • UNII-2TP5W97GUB
  • CID 54707215
  • Ascorbic Acid EP Impurity G(Discontinued,See C4X-177925)

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