1-Trifluoroacetyl-4-methylthiosemicarbazide CAS 25366-21-6
| CAS No. | 25366-21-6 |
| Molecular Formula | C4H6F3N3OS |
| Molecular Weight | 201.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Trifluoroacetyl-4-methylthiosemicarbazide 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-Trifluoroacetyl-4-methylthiosemicarbazide (CAS 25366-21-6) is a high-purity analytical reference standard with the molecular formula C4H6F3N3OS and a molecular weight of 201.17 g/mol.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, 1-Trifluoroacetyl-4-methylthiosemicarbazide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.17 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.
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 | C4H6F3N3OS |
| Molecular Weight | 201.17 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Trifluoroacetyl Standards
- (2,2,2-Trifluoroacetyl)serine (CAS 848860-96-8)
- 4-(2,2,2-Trifluoroacetyl)benzaldehyde (CAS 86988-50-3)
- 2-(2,2,2-Trifluoroacetyl)nicotinonitrile (CAS 1060802-66-5)
- 6-(2,2,2-Trifluoroacetyl)pyridine-3-carbonitrile (CAS 1060804-08-1)
- 5-(2,2,2-Trifluoroacetyl)nicotinonitrile (CAS 1060804-10-5)
- 4-(2,2,2-Trifluoroacetyl)nicotinonitrile (CAS 1060804-11-6)
- 4-(2,2,2-Trifluoroacetyl)picolinonitrile (CAS 1060812-27-2)
- N-(trifluoroacetyl)-Alanyl Chloride (CAS 1597-19-9)
Recommended Standards
- [(2,2-Difluoro-2H-1,3-benzodioxol-5-yl)methyl](methyl)amine (CAS 381236-72-2)
- 2-((2,4-Difluorophenyl)amino)acetohydrazide (CAS 2351-00-0)
- (βS)-β-Amino-3,4-difluorobenzenepropanoic acid (CAS 447416-70-8)
- 2-((3,3,3-Trifluoropropyl)sulfonyl)acetonitrile (CAS 939049-22-6)
- 3-Fluoro-4-(2-methoxy-2-oxoethyl)phenylboronic Acid Pinacol Ester (CAS 1415960-53-0)
- 3,5-Dibromoethoxybenzene (CAS 136265-19-5)
- H-Lys(Abz)-Pro-Pro-pNA (CAS 219138-18-8)
- 4,7-Dibromo-5,6-dimethyl-2,1,3-benzothiadiazole (CAS 28681-49-4)
- N-Methyl-2-(methylsulfanyl)quinazolin-4-amine (CAS 338776-94-6)
- N-(6-Bromo-5-fluoropyridin-3-yl)acetamide (CAS 2750509-91-0)
- (2-Ethoxypyrimidin-5-yl)methanol (CAS 1379251-74-7)
- Methyl 2-(3,5-difluoropyridin-2-yl)acetate (CAS 1446409-01-3)
- (S)-tert-Butyl 1-(oxetan-3-yl)pyrrolidin-3-ylcarbamate (CAS 1256667-59-0)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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