2-Methyl-5-(trifluoromethyl)-1,3-benzothiazole CAS 398-99-2
| CAS No. | 398-99-2 |
| Molecular Formula | C9H6F3NS |
| Molecular Weight | 217.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Methyl-5-(trifluoromethyl)-1,3-benzothiazole.
2-Methyl-5-(trifluoromethyl)-1,3-benzothiazole (CAS 398-99-2), molecular formula C9H6F3NS and molecular weight 217.21 g/mol, is a CATO reference standard with documented purity and traceability.
2-Methyl-5-(trifluoromethyl)-1,3-benzothiazole (C9H6F3NS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C9H6F3NS |
| Molecular Weight | 217.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-Methyl-3-(trifluoromethyl)phenylisothiocyanate (CAS 1000577-12-7)
- 3-(Trifluoromethyl)benzyl thiocyanate (CAS 102859-64-3)
- 4-Methyl-2-(trifluoromethyl)benzo[d]thiazole (CAS 1188157-40-5)
- 6-Methyl-2-(trifluoromethyl)benzo[d]thiazole (CAS 1188158-87-3)
- 7-Methyl-2-(trifluoromethyl)benzo[d]thiazole (CAS 1188226-80-3)
- 2-(Trifluoromethyl)benzyl thiocyanate (CAS 1233513-28-4)
- 5-Methyl-2-(trifluoromethyl)benzo[d]thiazole (CAS 124168-45-2)
- 2-Methyl-4-(trifluoromethyl)benzo[d]thiazole (CAS 1261598-43-9)
Recommended Standards
- 2-{[(2,2-difluoroethyl)amino]methyl}-6-methoxyphenol (CAS 937601-46-2)
- 4-(Prop-2-yn-1-ylthio)-2-(trifluoromethyl)pyridine (CAS 2408199-31-3)
- 2-[4-(difluoromethoxy)-3-methoxyphenyl]ethanamine (CAS 823234-68-0)
- 4-(Trifluoromethyl)benzo[b]thiophen-2-amine (CAS 2385617-19-4)
- (±)-1,2-Propanediol-(OD)2 (CAS 58161-11-8)
- (2Z)-3-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-1-(4-chlorophenyl)prop-2-en-1-one (CAS 288270-43-9)
- 3-Hydroxy-4-phenylpentanoic acid (CAS 591253-04-2)
- 7-Chloro-6-fluoro-4-((4-hydroxybenzylidene)amino)cinnoline-3-carboxylic acid (CAS 159831-79-5)
- 1-Chloroacridin-9(10H)-one (CAS 91311-45-4)
- Istradefylline Impurity 22 (CAS 1453190-01-6)
- Ethyl 2-(3,5-dimethylphenoxy)acetate (CAS 24242-74-8)
- Phenethyl Benzoate (CAS 94-47-3)
- [2-(1,1-Dimethylethoxy)-2-oxoethyl](2-methylphenyl)[1,2-phenylenebis[diphenylphosphine-κP]]palladium (CAS 351531-17-4)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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