5-(chloromethyl)-1-methyl-1H-1,2,3-benzotriazole CAS 149440-48-2
| CAS No. | 149440-48-2 |
| Molecular Formula | C8H8ClN3 |
| Molecular Weight | 181.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(chloromethyl)-1-methyl-1H-1,2,3-benzotriazole (CAS 149440-48-2), molecular formula C8H8ClN3 and molecular weight 181.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(chloromethyl)-1-methyl-1H-1,2,3-benzotriazole (C8H8ClN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 181.62 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C8H8ClN3 |
| Molecular Weight | 181.62 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.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloromethyl Standards
- 5-(Chloromethyl)indolin-2-one (CAS 1092286-02-6)
- 2-(Chloromethyl)-3-methyl-3h-imidazo[4,5-b]pyridine (CAS 1092697-36-3)
- 5-(chloromethyl)-2-methoxybenzonitrile (CAS 109418-87-3)
- 2-[4-(chloromethyl)phenoxy]acetonitrile (CAS 112772-83-5)
- 2-(CHLOROMETHYL)-6-METHYLIMIDAZO[1,2-B]PYRIDAZINE (CAS 1201597-29-6)
- 8-(Chloromethyl)-3-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1206970-44-6)
- 3-(Chloromethyl)-5-methoxybenzonitrile (CAS 1261851-29-9)
- 2-(Chloromethyl)-3-methoxybenzonitrile (CAS 1261874-07-0)
Recommended Standards
- 2-Chloro-4-(dimethylamino)nicotinonitrile (CAS 147992-80-1)
- 5-Chloro-1-methyl-1H-indazol-3-amine (CAS 1499100-99-0)
- 5-Chloro-2-ethyl-1H-imidazo[4,5-b]pyridine (CAS 146014-80-4)
- (5-Chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methanamine (CAS 1505311-42-1)
- 2-Chloro-pyrido[2,3-b]pyrazine dihydrochloride (CAS 1187931-12-9)
- N-(3,4-dimethoxybenzyl)benzenesulfonamide (CAS 305849-01-8)
- (E)-4-(2-(Trifluoromethyl)phenyl)but-3-en-2-one (CAS 852527-28-7)
- tert-Butyl (S)-azepan-3-ylcarbamate hydrochloride (CAS 2829292-66-0)
- (2R,4S)-6-Fluoro-2-methylspiro[chroman-4,4'-imidazolidine]-2',5'-dione (CAS 102916-95-0)
- 4-Propylfuran-2(5H)-one (CAS 21963-27-9)
- 1-Cyclohexyl-3-dodecylurea (CAS 402939-18-8)
- Angiotensin II (1-4), human (CAS 52580-29-7)
- Pyrrolo[1,2-a]thieno[2,3-e]pyrazin-5-amine (CAS 111886-59-0)
- Glucagon (1-29) (CAS 16941-32-5)
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