Chemical identity

Ascorbic Acid EP Impurity H

CAS 122046-79-1 · C7H8O7

01Identity

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

Lazychem IDLC-06843
PubChem CID125336450
NameAscorbic Acid EP Impurity H
CAS RN122046-79-1
Molecular formulaC7H8O7
Molecular weight204.13 g/mol
IUPAC namemethyl (R)-2-((R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetate
InChIKeyYDPRPKPHLCWZNT-UHNVWZDZSA-N

02Structure identifiers

2D structurePubChem CID 125336450
2D structure: Ascorbic Acid EP Impurity H, CAS 122046-79-1
Structure of Ascorbic Acid EP Impurity H (CAS 122046-79-1). LazyChem record. Source identity: PubChem CID 125336450. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC7H8O7
InChIKeyYDPRPKPHLCWZNT-UHNVWZDZSA-N
Ring count1
Defined stereocentres2
Unassigned stereocentres0
SMILESCOC(=O)[C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O
InChIInChI=1S/C7H8O7/c1-13-6(11)4(10)5-2(8)3(9)7(12)14-5/h4-5,8-10H,1H3/t4-,5+/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 122046-79-1 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 122046-79-1 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

  • (R)-Methyl 2-((R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetate
  • 1,​4-Lactone-L-threo-hex-​2-​enaric Acid 6-Methyl Ester
  • L-threo-Hex-2-enaric acid 1,4-Lactone 6-Methyl Ester
  • UNII-ZY6H5FMV5Q
  • Methyl (2R)-2-((2R)-3,4-dihydroxy-5-oxo-2H-furan-2-yl)-2-hydroxyacetate
  • Methyl (2R)-2-((2R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetate
  • Methyl (R)-2-((R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetate
  • H20555

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