1,2,5-oxadiazole-3-carbonyl chloride CAS 1079401-91-4
| CAS No. | 1079401-91-4 |
| Molecular Formula | C3H5ClN2O2 |
| Molecular Weight | 136.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
1,2,5-oxadiazole-3-carbonyl chloride (CAS 1079401-91-4), molecular formula C3H5ClN2O2 and molecular weight 136.54 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,2,5-oxadiazole-3-carbonyl chloride (C3H5ClN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 136.54 g/mol, it falls into the low-molecular-weight range. 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 manufactures 1,2,5-oxadiazole-3-carbonyl chloride 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 | C3H5ClN2O2 |
| Molecular Weight | 136.54 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related oxadiazole Standards
- 3-Propyl-1,2,4-oxadiazole-5-carbaldehyde (CAS 1083424-37-6)
- 1,2,4-Oxadiazole-3-carbonyl chloride (CAS 39512-69-1)
- methyl 1,2,5-oxadiazole-3-carboxylate (CAS 148122-20-7)
- methyl 1,3,4-oxadiazole-2-carboxylate (CAS 1934787-37-7)
- 4-methyl-1,2,5-oxadiazole-3-carboxylic acid (CAS 58677-34-2)
- 5-methyl-1,2,3-oxadiazole-4-carboxylic acid (CAS 914637-48-2)
- 5-Ethyl-1,3,4-oxadiazole-2-carboxylic acid (CAS 944898-04-8)
- Ethyl 1,2,4-Oxadiazole-3-carboxylate (CAS 39512-59-9)
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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