3-Methyl-1-(thiophen-2-ylmethyl)-1h-pyrazol-5-amine CAS 4394-28-9
| CAS No. | 4394-28-9 |
| Molecular Formula | C9H11N3S |
| Molecular Weight | 193.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methyl-1-(thiophen-2-ylmethyl)-1h-pyrazol-5-amine 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.
CATO supplies 3-Methyl-1-(thiophen-2-ylmethyl)-1h-pyrazol-5-amine (CAS 4394-28-9), a certified reference material (molecular formula C9H11N3S, MW 193.27 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 3-Methyl-1-(thiophen-2-ylmethyl)-1h-pyrazol-5-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H11N3S |
| Molecular Weight | 193.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-(3-(Thiophen-2-yl)-1H-pyrazol-1-yl)ethan-1-amine (CAS 1020706-50-6)
- 4-Methyl-1-(thiophen-3-ylmethyl)-1H-pyrazol-5-amine (CAS 1152505-33-3)
- 1-(5-(Thiophen-2-yl)-1h-imidazol-2-yl)ethan-1-amine (CAS 1155053-93-2)
- (1-Methyl-3-(thiophen-2-yl)-1h-pyrazol-4-yl)methanamine (CAS 1174309-20-6)
- 4-Ethyl-3-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 1187057-51-7)
- 4-Ethyl-3-(thiophen-3-yl)-1h-pyrazol-5-amine (CAS 1187560-97-9)
- 1-(1-(Thiophen-3-yl)ethyl)-1H-pyrazol-5-amine (CAS 1250756-67-2)
- 5-Ethyl-3-(thiophen-3-yl)-1H-pyrazol-4-amine (CAS 1257877-25-0)
Recommended Standards
- 3-Ethyl-4-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 955584-79-9)
- 3-methyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-5-one (CAS 24187-66-4)
- 3-Benzylthiazolidin-4-one (CAS 67824-12-8)
- 3-methyl-2,3,4,5-tetrahydro-1,5-benzothiazepin-4-one (CAS 6516-91-2)
- 1-(3-Fluoro-4-methoxyphenyl)propan-1-ol (CAS 1649-96-3)
- Ethyl 3-(2,4-Difluorophenyl)-3-oxopropionate (CAS 58101-23-8)
- 2-{2-amino-4H,5H,6H-cyclopenta[b]thiophene-3-carbonyl}-5-methoxybenzonitrile (CAS 1803611-42-8)
- Swertisin (CAS 6991-10-2)
- (Z)-2-(4,5,5-Trimethylpyrrolidin-2-ylidene)acetonitrile (CAS 61650-12-2)
- 4H-Indeno[5,6-d]oxazole (CAS 17491-88-2)
- 1,2-Epoxy-5-cyclooctene 1,5-Cyclooctadiene monoepoxide 5,6-Epoxy-1-cyclooctene 637-90-1 9-Oxabicyclo[6.1.0]non-4-ene NSC-61254 NSC61254 (CAS 637-90-1)
- 2-Iodo-1-(4-methylphenyl)ethan-1-ol (CAS 256380-98-0)
- 1-[(2,3-dichlorophenyl)methyl]-1h-pyrazol-5-amine hydrochloride (CAS 1052546-74-3)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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