6,7-Dihydrothieno[3,2-d]pyrimidine-2,4-diol CAS 913581-92-7
| CAS No. | 913581-92-7 |
| Molecular Formula | C6H6N2O2S |
| Molecular Weight | 170.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 6,7-Dihydrothieno[3,2-d]pyrimidine-2,4-diol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
6,7-Dihydrothieno[3,2-d]pyrimidine-2,4-diol (CAS 913581-92-7), molecular formula C6H6N2O2S and molecular weight 170.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H6N2O2S, 6,7-Dihydrothieno[3,2-d]pyrimidine-2,4-diol contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dihydrothieno Standards
- 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-carbaldehyde (CAS 204905-77-1)
- (2,3-Dihydrothieno[3,4-b][1,4]dioxin-2-yl)methanamine (CAS 1003863-36-2)
- 5-Methyl-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one (CAS 1001123-68-7)
- (2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)methanol (CAS 859851-01-7)
- 2,3-Dihydrothieno[3,4-d]pyridazine-1,4-dione (CAS 412338-39-7)
- 5,6-Dihydrothieno[2,3-d]pyridazine-4,7-dione (CAS 91533-21-0)
- 7-Oxo-6,7-dihydrothieno[2,3-c]pyridine-4-carbonitrile, 97% (CAS 912369-27-8)
- 4-Oxo-3,4-dihydrothieno[2,3-d]pyrimidine-5-carbonitrile (CAS 1801143-20-3)
Recommended Standards
- 6-(Methylsulfanyl)pyrimidine-4-carboxylic acid (CAS 301342-78-9)
- 6-Acetyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 7597-77-5)
- 5-Methylsulfanylpyrimidine-4-carboxylic acid (CAS 69211-74-1)
- 6-amino-2-thioxo-1,2-dihydropyrimidine-5-carboxamide (CAS 89323-11-5)
- (S)-4-methylpiperazine-2-carboxylic acid (CAS 2165581-17-7)
- 2-Bromoethanol-<SUP>13</SUP>C<SUB>2</SUB>,1,1,2,2-d<SUB>4</SUB> (CAS 1216889-96-1)
- 4-[(4-Chlorophenyl)sulfanyl]-6-(methoxymethyl)-2-(methylsulfanyl)pyrimidine (CAS 338747-96-9)
- 4-(Cyclohexylmethoxy)-3-fluoroaniline (CAS 937598-45-3)
- N-(1-(4-Chlorophenyl)vinyl)acetamide (CAS 208118-80-3)
- (1-Bromo-2,2,2-trifluoroethyl)benzene 3336AE 434-42-4 C8H6BrF3 (CAS 434-42-4)
- 4-Fluoro-3-(morpholinosulfonyl)aniline (CAS 565193-47-7)
- 2-(4-Methoxyphenyl)imidazo[1,2-a]pyrimidine-3-carbaldehyde (CAS 500228-75-1)
- Sodium deoxycoformycin triphosphate (CAS 18423-43-3)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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