Benzyl (5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbamate CAS 957041-13-3
| CAS No. | 957041-13-3 |
| Molecular Formula | C13H14ClN3O2 |
| Molecular Weight | 279.72 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 Benzyl (5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbamate.
Benzyl (5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbamate (CAS 957041-13-3) is a high-purity analytical reference standard with the molecular formula C13H14ClN3O2 and a molecular weight of 279.72 g/mol.
Benzyl (5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbamate (C13H14ClN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), Benzyl (5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbamate 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 | C13H14ClN3O2 |
| Molecular Weight | 279.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Benzyl Standards
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- Ethyl 2-(6-chloro-2-methyl-4-oxoquinolin-1(4H)-yl)acetate (CAS 1171940-80-9)
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Recommended Standards
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- 4,5,7-Trichloro-2,3-dihydro-1h-indole-2,3-dione (CAS 828911-72-4)
- 3-(2-Chloro-3,4,5-trimethoxyphenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1018125-33-1)
- Diethyl 2-methylpyrimidine-4,5-dicarboxylate (CAS 1860-98-6)
- 1-(Benzo[c][1,2,5]oxadiazol-5-yl)ethanone (CAS 59660-57-0)
- 3-Iodo-2,5,6-trimethoxyisonicotinonitrile (CAS 1414864-11-1)
- 3-(2-Fluorophenyl)-6-methyl-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 62052-15-7)
- (1-(4-Methoxybenzyl)-1H-1,2,4-triazol-5-yl)methanol (CAS 199014-14-7)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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