Cefazolin Impurity 44 CAS 20198-75-8
| CAS No. | 20198-75-8 |
| Molecular Formula | C4H8N2OS2 |
| Molecular Weight | 164.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cefazolin Impurity 44 (C4H8N2OS2) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Cefazolin Impurity 44 (CAS 20198-75-8), a certified reference material (molecular formula C4H8N2OS2, MW 164.25 g/mol) for analytical method development and quality control.
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 44 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 | C4H8N2OS2 |
| Molecular Weight | 164.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Cefazolin Standards
- Cefazolin Impurity 39 (CAS 13616-37-0)
- Cefazolin Impurity 28 (CAS 26240-90-4)
- Cefazolin Impurity 26 (CAS 1925-78-6)
- Cefazolin Impurity 58 (CAS 1012-29-9)
- Cefazolin Impurity 65 (CAS CATO-C4X-157765)
- Cefazolin Impurity 87 (CAS CATO-C4X-157787)
- (Z)-Cefazolin Impurity 44 (CAS 66338-95-2)
- Cefazolin EP Impurity E(Cefazolin USP RC E) (CAS 29490-19-5)
Recommended Standards
- Butyl[(pyridin-4-yl)methyl]amine (CAS 91010-46-7)
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- Methyl 1,2-dithiolane-4-carboxylate (CAS 7389-17-5)
- MEthyl 2'-acetyl[1,1'-biphenyl]-4-carboxylate (CAS 893734-80-0)
- 5-Phenyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1501-13-9)
- Methyl 5-(3,4-dimethoxyphenyl)-5-oxopentanoate (CAS 131699-22-4)
- 2-(Bromomethyl)naphthalene-6-carboxaldehyde (CAS 1019056-15-5)
- 1-(Benzenesulfonyl)-5-bromo-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 757978-19-1)
- 3-(3-chloro-4-methoxybenzoyl)-4H,5H,6H-cyclopenta[b]thiophen-2-amine (CAS 1797174-07-2)
- 4-[Isocyano-(toluene-4-sulfonyl)-methyl]-biphenyl (CAS 1029104-40-2)
- Methyl 1-(2-cyanobenzyl)piperidine-4-carboxylate (CAS 1017028-88-4)
- 1-Methyl-4-vinylquinolin-2(1H)-one (CAS 133363-53-8)
- Hexapeptide-1 (CAS CATO-CPTD788821)
Why CATO?
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