5-Methylbenzo[d]thiazole-2-thiol CAS 21303-50-4
| CAS No. | 21303-50-4 |
| Molecular Formula | C8H7NS2 |
| Molecular Weight | 181.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Methylbenzo[d]thiazole-2-thiol (CAS 21303-50-4), a certified reference material (molecular formula C8H7NS2, MW 181.28 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 5-Methylbenzo[d]thiazole-2-thiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 181.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 5-Methylbenzo[d]thiazole-2-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 | C8H7NS2 |
| Molecular Weight | 181.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | 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.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Methylbenzo Standards
- 6-Methylbenzo[d]thiazole-2-thiol (CAS 2268-79-3)
- 7-Methylbenzo[d]thiazole-2-thiol, 97% (CAS 54237-36-4)
- 2-Methylbenzo[d]thiazole-6,7-diamine (CAS 101258-10-0)
- 2-Methylbenzo[d]thiazole-5,6-diol (CAS 68252-56-2)
- 9-Methylbenzo[4,5]imidazo[1,2-a]pyridine (CAS 474537-07-0)
- 5-Methylbenzo[b]thiophene 1,1-dioxide (CAS 19156-71-9)
- 2-Methylbenzo[b]thiophene 1,1-dioxide (CAS 6224-55-1)
- 2-Ethyl-2-methylbenzo[d][1,3]dioxol-5-ol (CAS 74024-81-0)
Recommended Standards
- 5-Amino-1-tert-butyl-4-ethyl-3-methylpyrazole (CAS 947688-96-2)
- 5-Amino-1-tert-butyl-3-ethyl-4-methylpyrazole (CAS 947688-97-3)
- 5-(1H-Imidazol-5-yl)-N,N-dimethylpentan-1-amine (CAS 397248-39-4)
- Benzo[d]thiazol-2-ylmethanethiol (CAS 73544-70-4)
- 7-Hydroxy-5-undecyl-3,4-dihydroquinoxalin-6(2H)-one (CAS 154324-53-5)
- 5-Bromo-6-methylindoline-2,3-dione (CAS 106976-23-2)
- 2-(((4-Chloro-2-(trifluoromethyl)phenyl)amino)methyl)-6-methoxyphenol (CAS 1232770-19-2)
- 220609-41-6 J8S0F07AIX Distearoylpropyl trimonium chloride UNII-J8S0F07AIX 1-Propanaminium, N,N,N-trimethyl-2,3-bis((1-oxooctadecyl)oxy)-, chloride (1:1) 2,3-Bis(stearoyloxy)propyltrimethylammonium chloride Distearoylpropyl trimonium chloride [INCI] Dstap chloride (CAS 220609-41-6)
- n-Methyl-2-(1-methylindolin-5-yl)ethan-1-amine (CAS 1268033-61-9)
- 5-(1H-1,3-benzodiazol-2-yl)quinoline (CAS 123995-39-1)
- 4-((3-Chloro-2,4-difluorophenyl)amino)-7-methoxyquinazolin-6-ol (CAS 1818217-55-8)
- 1-Glycylpiperidin-4-one (CAS 1353957-31-9)
- 1-(3-Fluoroisonicotinoyl)pyrrolidine-3-carboxylic acid hydrochloride (CAS 1837253-69-6)
- Amyloid Precursor Frameshift Mutant C-Terminal Peptide trifluoroacetate salt (CAS 189125-14-2)
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