3-(difluoromethyl)-1-methyl-pyrazole-4-thiol CAS 2055255-83-7
| CAS No. | 2055255-83-7 |
| Molecular Formula | C5H6F2N2S |
| Molecular Weight | 164.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(difluoromethyl)-1-methyl-pyrazole-4-thiol (CAS 2055255-83-7), molecular formula C5H6F2N2S and molecular weight 164.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(difluoromethyl)-1-methyl-pyrazole-4-thiol (C5H6F2N2S) contains a nitrile group, sulfur-containing functionality, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 164.18 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 3-(difluoromethyl)-1-methyl-pyrazole-4-thiol 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 | C5H6F2N2S |
| Molecular Weight | 164.18 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related difluoromethyl Standards
- 1-(difluoromethyl)cycloheptan-1-ol (CAS 1504324-80-4)
- [5-(Difluoromethyl)thiophen-2-yl]methanol (CAS 153026-90-5)
- 2-(Difluoromethyl)-3-methoxythiophene (CAS 2149591-23-9)
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carbaldehyde (CAS 1094484-55-5)
- Ethyl 1-(difluoromethyl)cyclopropane-1-carboxylate (CAS 1267856-62-1)
- 2-(Difluoromethyl)cyclopentane-1-carboxylic acid (CAS 1421601-91-3)
- 1-(Difluoromethyl)cyclopentane-1-carboxylic acid (CAS 1783741-84-3)
- (4-(Difluoromethyl)-2-oxabicyclo[2.1.1]hexan-1-yl)methanol (CAS 2503206-15-1)
Recommended Standards
- 3-(4-Fluorophenyl)-4,5-dihydro-1H-pyrazole (CAS 344752-82-5)
- 3,4-Dimethoxy-1,2,5-thiadiazole 1-oxide (CAS 78441-23-3)
- 3-(2-Fluorophenyl)-4,5-dihydro-1H-pyrazole (CAS 361442-71-9)
- 3-[(4-fluorophenyl)amino]propanenitrile (CAS 380190-11-4)
- methyl 4-(aminooxy)butanoate (CAS 107903-02-6)
- 4-[(5-methylpyridin-2-yl)oxy]aniline (CAS 229155-80-0)
- 2-[2-(3,3,3-trifluoropropyl)-1,3-thiazol-4-yl]acetic acid hydrochloride (CAS 2060060-40-2)
- Bimatoprost Impurity 9 (CAS 32233-40-2)
- 7-fluoro-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 1227465-79-3)
- 3-(4-Bromo-3-fluorophenyl)-2-chloro-1-propene (CAS 951888-41-8)
- Ethyl 6-methoxy-2,4-dihydroindeno[1,2-c]pyrazole-3-carboxylate (CAS 2170819-13-1)
- 26530-24-5 5-Chloro-2-n-octyl-4-isothiazolin-3-one 5-Chloro-2-octyl-3(2H)-isothiazolone 5-Chloro-N-n-octylisothiazolin-3-one (CAS 26530-24-5)
- 4-(4-Tert-butylphenoxy)butanoic acid (CAS 87411-30-1)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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