1H-Thieno[2,3-d]pyrimidine-2,4-dione CAS 18740-38-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 18740-38-0 |
| Molecular Formula | C6H6N2O2S |
| Molecular Weight | 170.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1H-Thieno[2,3-d]pyrimidine-2,4-dione (CAS 18740-38-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H6N2O2S. Molecular weight: 170.19 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H6N2O2S |
| Molecular Weight | 170.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
- {thieno[3,2-b]thiophen-2-yl}methanol (CAS 127025-34-7)
- Thieno[3,2-b]thiophen-3-ylmethanol (CAS 1628918-78-4)
- thieno[3,2-b]thiophen-2-ylmethanamine (CAS 874881-30-8)
- 2H-Thieno[2,3-d][1,3]oxazine-2,4(1H)-dione (CAS 103979-54-0)
- 1H-Thieno[2,3-d][1,2,3]triazole-5-carboxylic acid (CAS 107166-05-2)
- thieno[2,3-c]pyridine-2-carbaldehyde (CAS 203922-18-3)
- thieno[3,2-c]pyridine-2-carbaldehyde (CAS 94226-19-4)
- thieno[3,2-b]pyridine-6-carbonitrile (CAS 116538-95-5)
Recommended Standards
- 3-(Methylthio)-2-nitropyridine (CAS 1854652-12-2)
- 3-(Methylthio)-5-nitropyridine (CAS 1881296-22-5)
- 4-Cyclopropyl-1,2,3-thiadiazole-5-carboxylic acid (CAS 183303-71-1)
- 2-Chloro-4-fluoro-5-(isobutyramidomethyl)benzoic acid (CAS 1381846-28-1)
- N-Methylpropiolamide (CAS 2682-32-8)
- Ethanol, polymer with tantalum chloride (TaCl5) (CAS 135929-42-9)
- 2-hydroxy-5-methoxybenzamide (CAS 28534-37-4)
- (4R,5R)-5-(benzyloxymethyl)-3,3-difluoro-4-hydroxy-tetrahydrofuran-2-one (CAS 1583260-40-5)
- 4-(5-Isopropyl-2-methylphenoxy)-2-methylaniline (CAS 946699-54-3)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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 13829788188 / jacky.chen@cato-chem.com