Chemical identity

Desacetyl Ceftazidime Lactone

CAS 1301254-50-1 · C17H17N5O7S2

01Identity

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

Lazychem IDLC-12320
PubChem CID163203314
NameDesacetyl Ceftazidime Lactone
CAS RN1301254-50-1
Molecular formulaC17H17N5O7S2
Molecular weight467.5 g/mol
IUPAC name2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((5aR,6R)-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-2-oxoethylidene)amino)oxy)-2-methylpropanoic acid
InChIKeyKYDANLMPWMHMIU-YCRCPZNHSA-N

02Structure identifiers

2D structurePubChem CID 163203314
Two-dimensional chemical structure of Desacetyl Ceftazidime Lactone, CAS 1301254-50-1
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 2 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres2
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC(C)(C(=O)O)O/N=C(/C1=CSC(=N1)N)\C(=O)N[C@H]2[C@@H]3N(C2=O)C4=C(COC4=O)CS3
InChINot listed
Formula from structureC17H17N5O7S2
Molecular weight from structure467.5 g/mol

03Stereochemistry

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

Defined centres2Structure assigned
Unassigned centres0Structure unspecified
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 / RCSNO EXACT MATCH FOUNDCAS 1301254-50-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1301254-50-1 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

Ceftazidime

View API and impurity family

Other names

  • 2-[(Z)-[1-(2-amino-1,3-thiazol-4-yl)-2-[[(4R,5R)-3,11-dioxo-10-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undec-1(8)-en-4-yl]amino]-2-oxoethylidene]amino]oxy-2-methylpropanoic acid
  • 1301254-50-1
  • CS-0166372
  • 2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((5aR,6R)-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-2-oxoethylidene)amino)oxy)-2-methylpropanoic Acid (Ceftazidime Impurity
  • 2-(((Z)-(1-(2-aminothiazol-4-yl)-2-(((5aR,6R)-1,7-dioxo-1,3,4,5a,6,7-hexahydroazeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-2-oxoethylidene)amino)oxy)-2-methylpropanoic acid

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