5-Methoxypyrimidine-4(3H)-thione CAS 51793-91-0
| CAS No. | 51793-91-0 |
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Methoxypyrimidine-4(3H)-thione (CAS 51793-91-0) is a high-purity analytical reference standard with the molecular formula C5H6N2OS and a molecular weight of 142.18 g/mol.
Based on its molecular formula C5H6N2OS, 5-Methoxypyrimidine-4(3H)-thione contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 142.18 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.
CATO manufactures 5-Methoxypyrimidine-4(3H)-thione 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.
Physical & Chemical Properties
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methoxypyrimidine Standards
- 2-Methoxypyrimidine-5-thiol (CAS 1305356-30-2)
- 5-Methoxypyrimidine-2,4-diol (CAS 1882546-41-9)
- 4-Methoxypyrimidine-2,5-diol (CAS 55196-65-1)
- 6-Methoxypyrimidine-2,4-diol (CAS 19868-01-0)
- 2-methoxypyrimidine-5-carbonitrile (CAS 38373-47-6)
- 4-methoxypyrimidine-2-carbonitrile (CAS 94789-37-4)
- 5-methoxypyrimidine-2-carbonitrile (CAS 87362-32-1)
- 5-Methoxypyrimidine-2,4-diamine (CAS 18588-48-2)
Recommended Standards
- 5-Methoxy-2-thiophenecarbaldehyde (CAS 35087-46-8)
- 5-Methoxythiophene-3-carbaldehyde (CAS 78395-10-5)
- 5-Hydroxy-2-(methylthio)pyrimidine (CAS 4874-33-3)
- 5-Methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one (CAS 35455-79-9)
- 3-Cyclobutyl-2-((thietan-3-ylamino)methyl)propan-1-ol (CAS 1880305-44-1)
- 1-Bromo-2,3,5,6-tetrafluoro-4-(trichloromethoxy)benzene (CAS 1417567-04-4)
- 6-Bromonicotinic acid 6-bromo-3-pyridine carboxylic acid 6-Bromopyridine-3-carboxylic acid 2-Bromo-5-pyridinecarboxylic acid 6-Bromo-3-pyridinecarboxylic acid 2-Bromopyridine-5-carboxylic acid 6311-35-9 (CAS 6311-35-9)
- Olmesartan Impurity 33 (CAS CATO-C4X-109733)
- 6-Ethyl-3-propylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 667903-48-2)
- (5-(2-Fluorophenyl)isoxazol-3-yl)methyl 2-(2,5-dioxopyrrolidin-1-yl)acetate (CAS 1203419-71-9)
- 1-(3,4,5-Trimethoxy-2-(trifluoromethyl)phenyl)ethanone (CAS 1446436-57-2)
- (4-Bromobicyclo[2.1.1]Hexan-1-yl)methanol (CAS 497074-22-3)
- Methyl (Z)-N-(3-chloro-4-methoxybenzyl)-N'-(2-cyano-4,5-dimethoxyphenyl)carbamimidothioate (CAS 692287-58-4)
- Steroidogenesis-Activator Polypeptide (rat) (H-8855.0500) (CAS 108563-23-1)
Why CATO?
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