2H-thieno[2,3-d][1,3]dithiole-2-thione CAS 67188-88-9
| CAS No. | 67188-88-9 |
| Molecular Formula | C5H2S4 |
| Molecular Weight | 190.33 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 2H-thieno[2,3-d][1,3]dithiole-2-thione.
2H-thieno[2,3-d][1,3]dithiole-2-thione (CAS 67188-88-9), molecular formula C5H2S4 and molecular weight 190.33 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, 2H-thieno[2,3-d][1,3]dithiole-2-thione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 2H-thieno[2,3-d][1,3]dithiole-2-thione 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 | C5H2S4 |
| Molecular Weight | 190.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |
| Sulfur Atoms | 4 |
Related H Standards
- Thieno[3,4-d][1,3]dithiole-2-thione (CAS 80229-39-6)
- Thieno[3,2-b]thiophene-3,6-dicarbonitrile (CAS 1634660-13-1)
- thieno[3,2-b]thiophene-2-boronic acid (CAS 160032-40-6)
- Thieno[2',3':4,5]pyrrolo[1,2-d][1,2,4]triazin-8(7H)-one (CAS 903164-41-0)
- thieno[3,2-d]pyrimidine-4-carboxylic acid (CAS 1029144-49-7)
- thieno[3,2-d]pyrimidine-7-carboxylic acid (CAS 1211596-20-1)
- thieno[2,3-d]pyrimidine-5-carboxylic acid (CAS 1557780-28-5)
- thieno[2,3-d]pyrimidine-4-carboxylic acid (CAS 1955519-70-6)
Recommended Standards
- 1,4-Dithiaspiro[4.5]Decan-8-ol (CAS 22428-86-0)
- 4-(4,5-Dihydro-1,3-thiazol-2-ylsulfanyl)butan-1-amine (CAS 642092-90-8)
- 1,3-Di-tert-butylbenzene (CAS 1014-60-4)
- 6-methylthieno[2,3-d]pyrimidine-4-thiol (CAS 25710-07-0)
- Butyl glycinate (CAS 2885-01-0)
- Tert-butyl (S)-3,3-difluoro-5-(3-oxobutanoyl)piperidine-1-carboxylate (CAS 2306255-10-5)
- 2-(2-(Trifluoromethyl)thiazol-5-yl)acetonitrile (CAS 2167711-50-2)
- 4-Phenyl-5-(pyrrolidin-1-ylmethyl)-4h-1,2,4-triazole-3-thiol (CAS 790263-64-8)
- 2-Azetidinomethyl-3-methoxybenzophenone (CAS 898754-38-6)
- Salmeterol EP Impurity A (CAS 1798014-51-3)
- 1-(4-((2-Aminoethyl)amino)quinolin-3-yl)-2,2,2-trifluoroethanone hydrochloride (CAS 1956371-45-1)
- 898789-36-1 3-(2-Methylphenyl)-1-[4-(methylsulfanyl)phenyl]propan-1-one DTXSID10644015 (CAS 898789-36-1)
- 4-(Pyridin-4-ylmethyl)morpholine-3,5-dione (CAS 865076-04-6)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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