Cefazolin EP Impurity A Hydrochloride CAS 98493-37-9
| CAS No. | 98493-37-9 |
| Molecular Formula | C11H12N4O3S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefazolin EP Impurity A Hydrochloride.
Cefazolin EP Impurity A Hydrochloride (CAS 98493-37-9), molecular formula C11H12N4O3S3HCl and molecular weight 380.88 g/mol, is a CATO reference standard with documented purity and traceability.
Cefazolin EP Impurity A Hydrochloride (C11H12N4O3S3HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Cefazolin EP Impurity A Hydrochloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H12N4O3S3 HCl |
| Molecular Weight | 380.88 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 3 |
Related Cefazolin Standards
- Cefazolin Impurity 58 (CAS 1012-29-9)
- Cefazolin Impurity 56 (CAS 106773-36-8)
- Cefazolin Impurity 55 (CAS 113479-65-5)
- Cefazolin EP Impurity G (CAS 1172998-53-6)
- Cefazolin EP Impurity K (Mixture of Diastereomers) (CAS 1322626-65-2)
- Cefazolin Impurity 57 (CAS 134203-48-8)
- Cefazolin Impurity 39 (CAS 13616-37-0)
- Cefazolin EP Impurity I（Cefazolin USP RC L） (CAS 1675244-99-1)
Recommended Standards
- (E)-N-(2,5-dichlorophenyl)-3-(furan-2-yl)acrylamide (CAS 424814-07-3)
- 3-(3-Methylthioureido)benzamide (CAS 880391-19-5)
- Ethyl 3-(1,4-Dioxaspiro[4.5]decan-8-yl)acrylate (CAS 1854994-34-5)
- 2-(5-Methylpyridin-2-yl)cyclopentanone (CAS 1391148-19-8)
- Methyl 6-sulfamoylnicotinate (CAS 285135-57-1)
- 2-(Benzo[d][1,3]dioxol-5-yl)imidazo[1,2-a]pyrimidine (CAS 866138-02-5)
- Paliperidone Impurity 13 (CAS CATO-C4X-172413)
- 2-Aminobenzo[d]oxazole-7-carbaldehyde (CAS 1804411-34-4)
- 2-Chloro-6-(phenylsulfanyl)benzonitrile (CAS 38615-62-2)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
Why CATO?
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