5-chloro-2-methyl-[1,2,4]triazolo[1,5-c]pyrimidine CAS 76044-37-6
| CAS No. | 76044-37-6 |
| Molecular Formula | C6H5ClN4 |
| Molecular Weight | 168.58 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 5-chloro-2-methyl-[1,2,4]triazolo[1,5-c]pyrimidine.
CATO supplies 5-chloro-2-methyl-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 76044-37-6), a certified reference material (molecular formula C6H5ClN4, MW 168.58 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H5ClN4, 5-chloro-2-methyl-[1,2,4]triazolo[1,5-c]pyrimidine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-chloro-2-methyl-[1,2,4]triazolo[1,5-c]pyrimidine 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 | C6H5ClN4 |
| Molecular Weight | 168.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related chloro Standards
- 6-Chloro-1H-pyrrolo[3,2-c]pyridin-2(3H)-one (CAS 1000342-80-2)
- 4-Chloro-2-methoxypyridine-3-carbonitrile (CAS 1008451-56-6)
- 6-Chloro-2-methyl-9H-purine (CAS 100859-35-6)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1019033-24-9)
- 2-Chloro-8-methyl-9H-purine (CAS 1023813-16-2)
- 2-Chloro-5-methylfuro[2,3-d]pyrimidine (CAS 1030377-49-1)
- 7-chloro-5-methyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 1055057-37-8)
- 2-Chloro-6-hydrazinylpyridine-4-carbonitrile (CAS 107445-56-7)
Recommended Standards
- 5-Chloro-2,3-dihydro-1H-indazol-3-one (CAS 7364-28-5)
- 5-Chloro-2-methyl-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 41948-69-0)
- 5-Chloro-1H-pyrrolo[2,3-b]pyridine 7-oxide (CAS 916176-51-7)
- 5-Chloro-3H-2-benzofuran-1-one (CAS 54109-03-4)
- 4,6-dichlorobenzene-1,3-dithiol (CAS 60822-12-0)
- 2-Ethyl-5-fluoro-2,3-dihydrobenzofuran-3-amine (CAS 1339479-71-8)
- (2-(Difluoromethyl)-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridin-4-yl)methanamine (CAS 1805293-70-2)
- 4-(2,4-Dichlorobenzoyl)-8-ethyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326814-99-6)
- 2,6-Dimethylimidazo[1,2-b]pyridazin-3-amine (CAS 1936272-20-6)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
- 6-Chloro-5-[(2,2-dimethyl-1-oxopropyl)amino]-2-pyridinecarboxylic acid (CAS 1142191-83-0)
- Oxetan-3-yl (2,2,2-trifluoroethyl) carbonate (CAS 2138427-54-8)
- Ethyl 2-(ethylsulfonyl)pyrimidine-5-carboxylate (CAS 858269-11-1)
- [α-Glu](Sidechain trans-position)-Liraglutide (CAS CATO-C4X-199240)
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