Cefazolin Impurity 39 CAS 13616-37-0
| CAS No. | 13616-37-0 |
| Molecular Formula | C5H8N4O2 |
| Molecular Weight | 156.14 g/mol |
| 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 Impurity 39.
CATO supplies Cefazolin Impurity 39 (CAS 13616-37-0), a certified reference material (molecular formula C5H8N4O2, MW 156.14 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H8N4O2, Cefazolin Impurity 39 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Cefazolin Impurity 39 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H8N4O2 |
| Molecular Weight | 156.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 4 |
Related Cefazolin Standards
- Cefazolin Impurity 28 (CAS 26240-90-4)
- Cefazolin Impurity 44 (CAS 20198-75-8)
- Cefazolin Impurity 26 (CAS 1925-78-6)
- Cefazolin EP Impurity E(Cefazolin USP RC E) (CAS 29490-19-5)
- Cefazolin Impurity 58 (CAS 1012-29-9)
- Cefazolin USP RC A (CAS 21732-17-2)
- Cefazolin Impurity N14 (CAS 21743-64-6)
- Cefazolin Impurity 53 (CAS 26476-16-4)
Recommended Standards
- Methyl 3-methoxy-1H-pyrazole-4-carboxylate (CAS 1361329-17-0)
- 1-Ethyl-5-hydroxy-1H-pyrazole-4-carboxylic acid (CAS 1365940-61-9)
- (2S,3R,4E)-2-Amino-3-hydroxy-tetradecenoic Acid Ethyl Ester (CAS 1356010-95-1)
- 2-(Dimethylamino)-1,3-oxazole-5-carboxylic acid (CAS 1367952-05-3)
- (E)-2-(3,5-Dimethyl-4-(phenyldiazenyl)-1H-pyrazol-1-yl)acetic acid, 97% (CAS 1883739-29-4)
- (3S,4R)-3-Fluoro-1-methylpiperidin-4-amine (CAS 1350629-55-8)
- 1-(aminomethyl)-4,4-dimethylcycloheptan-1-ol hydrochloride (CAS 2060008-16-2)
- 3-Bromo-2-(4-methoxyphenyl)-4,5-diphenylfuran (CAS 6628-71-3)
- 5-(4-Methoxyphenyl)thiazole-2-carbaldehyde (CAS 1211514-65-6)
- 5-Methyl-13-nitro-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-10-one (CAS 135810-39-8)
- (R)-1-Phenylprop-2-en-1-amine (CAS 325490-29-7)
- 1-(2,5-Dihydro-1H-pyrrol-1-yl)-2-(3-azaspiro[5.5]undecan-9-yl)ethanone (CAS 1422139-00-1)
- Ethyl 4-((4-aminophenyl)amino)butanoate (CAS 863383-14-6)
- Semaglutide impurity 63 (CAS CATO-C4X-222663)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com