4,6-Dimethoxypyrimidine-2-thiol CAS 57235-35-5
| CAS No. | 57235-35-5 |
| Molecular Formula | C6H8N2O2S |
| Molecular Weight | 172.20 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 4,6-Dimethoxypyrimidine-2-thiol.
4,6-Dimethoxypyrimidine-2-thiol (CAS 57235-35-5) is a high-purity analytical reference standard with the molecular formula C6H8N2O2S and a molecular weight of 172.20 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4,6-Dimethoxypyrimidine-2-thiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.20 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), 4,6-Dimethoxypyrimidine-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 | C6H8N2O2S |
| Molecular Weight | 172.20 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dimethoxypyrimidine Standards
- 4,6-dimethoxypyrimidine-2-carbonitrile (CAS 139539-63-2)
- 4,6-Dimethoxypyrimidine-2-methanol (CAS 125966-88-3)
- 4,6-Dimethoxypyrimidine-2-carbaldehyde (CAS 125966-89-4)
- 4,6-Dimethoxypyrimidine-5-carbaldehyde (CAS 4558-59-2)
- 2,6-Dimethoxypyrimidine-4-carbonitrile (CAS 100868-70-0)
- 2,4-Dimethoxypyrimidine-5-carbonitrile (CAS 14445-57-9)
- 2,6-Dimethoxypyrimidine-4-boronic Acid (CAS 852362-23-3)
- 2,4-Dimethoxypyrimidine-5-carboxylic acid (CAS 110821-07-3)
Recommended Standards
- 4-(Methylsulfonyl)pyridin-3-amine (CAS 857220-38-3)
- 4-Ethoxythiophene-2-carboxylic acid (CAS 917980-53-1)
- 4-(2-Hydroxyethyl)thiophene-2-carboxylic acid (CAS 2090045-09-1)
- 4-fluoro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehyde (CAS 2231674-89-6)
- N-(4-Fluorobenzylidene)-4-methoxyaniline (CAS 39769-08-9)
- 4,4'-(1,2-Dihydroxyethane-1,2-diyl)dibenzonitrile (CAS 113365-36-9)
- Dimethyl 3-amino-4,5-dimethylphthalate (CAS 2828444-24-0)
- 3-Bromo-2,5-dimethylpyridin-4-amine (CAS 1351516-43-2)
- 6-Amino-2-methylindole (CAS 102308-53-2)
- n-(2,5-Difluorophenyl)-2-((1-methyl-1h-imidazol-2-yl)thio)acetamide (CAS 303091-56-7)
- Oxazole, 2,2′-(2,6-naphthalenediyl)bis[4,5-dihydro-4-(1-methylethyl)-, [S-(R*,R*)]- (CAS 152619-48-2)
- (S)-2-Amino-1-(4-(((cyclopropylmethyl)amino)methyl)piperidin-1-yl)-3-methylbutan-1-one (CAS 1354010-98-2)
- ethyl 3-sulfanylbutanoate (CAS 156472-94-5)
- D-Tyr10-Tirzepatide (CAS CATO-CPTD788922)
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