1,2,4-Oxadiazole-3-carbonyl chloride CAS 39512-69-1
| CAS No. | 39512-69-1 |
| Molecular Formula | C3HClN2O2 |
| Molecular Weight | 132.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,2,4-Oxadiazole-3-carbonyl chloride is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,2,4-Oxadiazole-3-carbonyl chloride (CAS 39512-69-1), molecular formula C3HClN2O2 and molecular weight 132.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C3HClN2O2, 1,2,4-Oxadiazole-3-carbonyl chloride contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 132.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C3HClN2O2 |
| Molecular Weight | 132.51 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 | 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Oxadiazole Standards
- 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-thiol (CAS 62999-57-9)
- (1,2,5-Oxadiazole-3,4-diyl)dimethanol (CAS 14460-57-2)
- 1,2,4-Oxadiazole-3-carbothioamide 2425AE 39512-80-6 C3H3N3OS (CAS 39512-80-6)
- 1,2,5-oxadiazole-3-carbonyl chloride (CAS 1079401-91-4)
Recommended Standards
- Chloromaleic Acid Anhydride (CAS 96-02-6)
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- 2-Chloro-4-fluoropyrimidine (CAS 38953-29-6)
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- 3-(Cyclopropylmethoxy)-4-fluorobenzoic acid (CAS 1252898-90-0)
- 3-Iodo-4-(4-methylpiperidin-1-yl)benzoic acid (CAS 1131614-58-8)
- 3-Thia-8-azabicyclo[3.2.1]octane (CAS 1520084-35-8)
- 2-Methanesulfonylethanimidamide hydrochloride (CAS 164982-44-9)
- 2,5-dibromo-4-methylbenzene-1-sulfonyl chloride (CAS 1394041-86-1)
- 1,4-Dimethyl-N-((1-methyl-1H-pyrrol-2-yl)methyl)-1H-pyrazol-5-amine hydrochloride (CAS 1855951-05-1)
- 2-Propenoic acid, polymer with ethene and 1-propene (CAS 26125-51-9)
- 4-Methylaminorex-d5 (CAS 152477-94-6)
- Biotinyl-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802086-28-7)
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