Chlordiazepoxide CAS 58-25-3
| CAS No. | 58-25-3 |
| Molecular Formula | C16H14ClN3O |
| Molecular Weight | 299.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Chlordiazepoxide (CAS 58-25-3), molecular formula C16H14ClN3O and molecular weight 299.75 g/mol, is a CATO reference standard with documented purity and traceability.
Chlordiazepoxide (C16H14ClN3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
As a certified reference material (CRM), Chlordiazepoxide 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 | C16H14ClN3O |
| Molecular Weight | 299.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 100μg/mL in Methanol |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlordiazepoxide Standards
Recommended Standards
- Boc-p-chloro-D-Phe-OH (CAS 57292-44-1)
- n-(1-Benzyl-1h-pyrazol-4-yl)-6-chloro-2-methylpyrimidin-4-amine (CAS 1281119-62-7)
- Hydrochlorothiazide-d2 (CAS 1219798-89-6)
- 1-(1,3-Benzothiazol-2-yl)-1H-pyrazole-4-sulfonyl chloride (CAS 1343932-75-1)
- 1-(2,2-Diethoxyethoxy)-4-methoxybenzene (CAS 69034-13-5)
- (4-Amino-3-pyridinyl)cyclopropylmethanone (CAS 1342465-90-0)
- 6-(Furan-2-yl)-5H-pyrrolo[3,2-d]pyrimidin-4-ol (CAS 871025-06-8)
- Allobarbital (CAS 52-43-7)
- 1-(3,5-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264043-98-2)
- 4H-furo[3,2-b]pyrrole-5-carbohydrazide (CAS 91206-29-0)
- 1-(2-Chloro-4-nitrophenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264047-28-0)
- 4-Methyl-2-pyridinecarbonitrile (CAS 1620-76-4)
- 1,3-DIMETHOXY-5-(2-NITROVINYL)BENZENE (CAS 56723-84-3)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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