1-((4-Bromothiophen-2-yl)methyl)-4-methyl-1h-pyrazol-3-amine CAS 1342159-94-7
| CAS No. | 1342159-94-7 |
| Molecular Formula | C9H10BrN3S |
| Molecular Weight | 272.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-((4-Bromothiophen-2-yl)methyl)-4-methyl-1h-pyrazol-3-amine (CAS 1342159-94-7), molecular formula C9H10BrN3S and molecular weight 272.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, bromine substitution, 1-((4-Bromothiophen-2-yl)methyl)-4-methyl-1h-pyrazol-3-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 272.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C9H10BrN3S |
| Molecular Weight | 272.16 g/mol |
| 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.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bromothiophen Standards
- 3-(5-Bromothiophen-2-yl)-1,4-dimethyl-1h-pyrazol-5-amine (CAS 1152663-33-6)
- n-((5-Bromothiophen-2-yl)methyl)-1-methyl-1h-pyrazol-4-amine (CAS 1153751-57-5)
- 3-(5-Bromothiophen-2-yl)-4-ethyl-1h-pyrazol-5-amine (CAS 1312695-53-6)
- 1-((3-Bromothiophen-2-yl)methyl)-4-methyl-1h-pyrazol-3-amine (CAS 1341653-47-1)
- 1-((5-Bromothiophen-2-yl)methyl)-4-methyl-1h-pyrazol-3-amine (CAS 1341959-20-3)
- 3-(3-Bromothiophen-2-yl)-4-ethyl-1h-pyrazol-5-amine (CAS 1347231-89-3)
- 3-(5-Bromothiophen-2-yl)-N-cyclopropylacrylamide (CAS 930460-84-7)
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Recommended Standards
- 4-Bromo-1-(2-(thiophen-2-yl)ethyl)-1h-pyrazol-3-amine (CAS 1342972-13-7)
- 4-Bromo-1-fluoro-2-(piperidinomethyl)benzene (CAS 1345471-85-3)
- 4-Bromo-1-(2-(thiophen-3-yl)ethyl)-1h-pyrazol-3-amine (CAS 1341525-99-2)
- 3-(2-Bromo-4-fluorobenzyl)piperidine (CAS 1337367-71-1)
- (5-Bromopyridin-3-yl)(1,5-dioxa-9-azaspiro[5.5]undecan-9-yl)methanone (CAS 1798028-88-2)
- tert-Butyl 5-methyl-1,4-diazepane-1-carboxylate (CAS 194032-42-3)
- 2-(Trifluoromethyl)-5H,6H,7H-pyrrolo[3,4-b]pyridine (CAS 905273-59-8)
- Methyl 3-(2-methylprop-2-enamido)thiophene-2-carboxylate (CAS 303985-94-6)
- Pyr3 (CAS 1160514-60-2)
- 2-(4-(Methylsulfonyl)phenyl)-2-oxoacetic acid (CAS 79478-01-6)
- n3-Cyclopropyl-4h-1,2,4-triazole-3,5-diamine (CAS 1506884-31-6)
- (S)-2-amino-2-(4-(trifluoromethoxy)phenyl)ethan-1-ol hydrochloride (CAS 1391492-95-7)
- 6-Chloro-2,4'-bipyridine (CAS 39883-34-6)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
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