3-Methyl-2,3-dihydrobenzo[4,5]imidazo[2,1-b][1,3,4]thiadiazole CAS 138824-78-9
| CAS No. | 138824-78-9 |
| Molecular Formula | C9H9N3S |
| Molecular Weight | 191.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methyl-2,3-dihydrobenzo[4,5]imidazo[2,1-b][1,3,4]thiadiazole 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.
3-Methyl-2,3-dihydrobenzo[4,5]imidazo[2,1-b][1,3,4]thiadiazole (CAS 138824-78-9) is a high-purity analytical reference standard with the molecular formula C9H9N3S and a molecular weight of 191.25 g/mol.
The molecular framework of 3-Methyl-2,3-dihydrobenzo[4,5]imidazo[2,1-b][1,3,4]thiadiazole (C9H9N3S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H9N3S |
| Molecular Weight | 191.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)cyclopropan-1-amine (CAS 1094450-22-2)
- 2-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)azetidine (CAS 777886-91-6)
- 2-((2,3-Dihydrobenzo[b][1,4]dioxin-5-yl)oxy)acetonitrile (CAS 154582-36-2)
- 3-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)prop-2-en-1-ol (CAS 125872-73-3)
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)propan-2-one (CAS 15033-65-5)
- 1-Methyl-1,3-dihydrobenzo[4,5]imidazo[1,2-c]thiazole (CAS 116849-82-2)
- 2-Methyl-2,3-dihydrobenzo[4,5]imidazo[2,1-b]thiazole (CAS 87215-79-0)
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)prop-2-en-1-one (CAS 1467860-07-6)
Recommended Standards
- 1-Oxo-2,3-Dihydro-1H-Indene-4-Carbothioamide (CAS 138764-18-8)
- N-Methyl-5-phenyl-1,3,4-thiadiazol-2-amine (CAS 14537-64-5)
- N-[(2-Methyl-1-benzothiophen-3-yl)methylidene]hydroxylamine (CAS 1383814-81-0)
- Pyrimidin-2-yl(thiophen-3-yl)methanamine (CAS 1465849-43-7)
- 3-(dimethylcarbamoyl)benzene-1-sulfonyl chloride (CAS 396733-71-4)
- 3,7,7-Trimethyl-4-(pyridin-2-yl)-2,4,6,7,8,9-hexahydro-5H-pyrazolo[3,4-b]quinolin-5-one (CAS 748145-12-2)
- 2-(Pyrrolidin-3-yloxy)pyrimidine (CAS 950648-95-0)
- 4-(N-(Methyl-d3)sulfamoyl)benzoic acid (CAS 2140327-03-1)
- (S)-4-(4-Bromo-2-cyanophenyl)-1-(tert-butoxy-carbonyl)piperazine-2-carboxylic acid (CAS 1787091-85-3)
- (S)-6-(tert-Butoxycarbonyl)-6-azaspiro[2.5]octane-1-carboxylic acid (CAS 2306247-31-2)
- N-(4-isopropylbenzyl)ethanamine hydrochloride (CAS 889949-99-9)
- 5-(1-Methyl-1H-indol-2-yl)oxazol-2-amine (CAS 1896803-08-9)
- 2-(3-Ethyl-7,7-dimethyl-4,5,6,7-tetrahydro-1H-indazol-1-yl)ethanamine (CAS 561300-08-1)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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