5-Amino-1-(2-chlorophenyl)-3-methyl-1H-pyrazole-4-carbothioamide CAS 101309-61-9
| CAS No. | 101309-61-9 |
| Molecular Formula | C11H11ClN4S |
| Molecular Weight | 266.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 5-Amino-1-(2-chlorophenyl)-3-methyl-1H-pyrazole-4-carbothioamide (CAS 101309-61-9), a certified reference material (molecular formula C11H11ClN4S, MW 266.75 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 5-Amino-1-(2-chlorophenyl)-3-methyl-1H-pyrazole-4-carbothioamide is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 266.75 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C11H11ClN4S |
| Molecular Weight | 266.75 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 5-Amino-2-chloro-n-(thiophen-2-ylmethyl)benzamide (CAS 1099610-86-2)
- 2-Amino-5-chloro-N-(thiophen-2-ylmethyl)benzamide (CAS 218158-01-1)
- 2-Amino-N-((S)-1-(3-chlorophenyl)ethyl)-N-cyclopropylpropanamide (CAS 1354025-61-8)
- 4-Amino-2-chloro-n-cyclohexyl-n-methylbenzamide (CAS 63497-59-6)
- 6-[(2-Amino-4-chlorophenyl)amino]-2,2-dimethyl-2,3-dihydro-4H-pyran-4-one (CAS 1216774-91-2)
- N-(3-amino-2-chloro-4-fluorophenyl)propane-1-sulfonamide (CAS 1268830-77-8)
- ethyl 5-amino-1-(5-chloro-2-pyridinyl)-1H-pyrazole-4-carboxylate (CAS 104909-58-2)
- Ethyl 5-amino-1-(2-chlorophenyl)-1H-1,2,3-triazole-4-carboxylate (CAS 106748-15-6)
Recommended Standards
- Diphenylmethanesulfonyl chloride (CAS 869676-42-6)
- 4-Chloro-N-(2-(thiophen-2-yl)ethyl)picolinamide (CAS 1094306-31-6)
- 5-Chloro-3-phenethylthiophene-2-carboxylic acid (CAS 74168-80-2)
- 5-(4-Chlorophenyl)-4-ethylthiophene-2-carboxylic acid (CAS 861226-90-6)
- 1-Isopropoxy-3-(2-methylallyl)benzene (CAS 1256482-29-7)
- 4-Carboxy-2-chloro-3-methylphenylboronic acid (CAS 1451391-31-3)
- 3-Amino-3-mesitylpropan-1-ol (CAS 1250384-32-7)
- (R)-2-(5-Nitro-1-oxoisoquinolin-2(1H)-yl)propanamide (CAS 951015-87-5)
- 5-Oxa-2-azaspiro[3.4]Octan-8-one (CAS 2306268-72-2)
- 4-Methoxy-1H-indol-5-amine (CAS 214278-16-7)
- N-(5-(2,4-Dimethylphenyl)-1,3,4-oxadiazol-2-yl)-2-phenylacetamide (CAS 891115-31-4)
- (4-Chlorophenyl)(cycloheptyl)methanone (CAS 1233011-42-1)
- 9-Cyclopropyl-6-fluoro-8-methoxy-7-(2-methylpyridin-4-yl)isothiazolo[5,4-b]quinoline-3,4(2H,9H)-dione (CAS 906527-41-1)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
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