1,2-Dihydro-3H-pyrazole-3-thione CAS 6573-71-3
| CAS No. | 6573-71-3 |
| Molecular Formula | C14H30N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,2-Dihydro-3H-pyrazole-3-thione 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.
1,2-Dihydro-3H-pyrazole-3-thione (CAS 6573-71-3), molecular formula C14H30N2O2Br and molecular weight 338.31 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,2-Dihydro-3H-pyrazole-3-thione (C14H30N2O2Br) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C14H30N2O2 2*Br |
| Molecular Weight | 338.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dihydro Standards
- 3-(3,6-Dihydro-2h-pyran-4-yl)benzoic acid (CAS 1000016-95-4)
- 1,7-Dihydro-dipyrrolo[2,3-b:3',2'-e]pyridine (CAS 1000342-79-9)
- Methyl 9,10-Dihydro-9-oxoacridine-4-carboxylate (CAS 100039-03-0)
- 3-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)propan-1-ol (CAS 1000540-71-5)
- 2,5-Dihydro-1-(2-nitrophenyl)-5-oxo-1H-1,2,4-triazole-3-carboxylic acid dimethylamide (CAS 1000574-24-2)
- 5-(1,2-Dihydro-[1,1':4',1''-terphenyl]-2-yl)-3H-1,2,4-triazol-3-one (CAS 1000575-71-2)
- Ethyl 2,5-dihydro-5-oxo-1-[3-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-3-carboxylate (CAS 1000576-65-7)
- 2,5-Dihydro-5-oxo-1-phenyl-1H-1,2,4-triazole-3-carboxylic acid (2-chlorophenyl)amide (CAS 1000576-93-1)
Recommended Standards
- 3-(Methoxycarbonyl)cyclopentanecarboxylic Acid (CAS 84545-00-6)
- 2-Methoxy-3-(4-nitrophenyl)pyridine (CAS 1352318-63-8)
- tert-Butyl ((1S,2R)-2-(hydroxymethyl)cyclohexyl)carbamate (CAS 179686-77-2)
- 2-Methyl-6-(oxetan-3-yloxy)aniline (CAS 1695700-62-9)
- 3-Bromo-N-cyclopropyl-4-fluorobenzamide (CAS 639858-63-2)
- (6-(1-Methylpiperidin-4-yl)pyridin-3-yl)methanamine (CAS 1895319-03-5)
- 3-(((1h-Benzo[d]imidazol-2-yl)thio)methyl)-1,4-diphenyl-1h-pyrazol-5-amine (CAS 926258-05-1)
- Methyl (Z)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oct-2-enoate (CAS 1073371-75-1)
- 5-Chloro-3-methyl-2,3-dihydro-1H-inden-1-one (CAS 66248-97-3)
- (β-Asp5)-Delta-Sleep Inducing Peptide (CAS 82602-88-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com