1-Methyl-1,2-dihydropyrimidine-2-thione CAS 73547-86-1
| CAS No. | 73547-86-1 |
| Molecular Formula | C5H6N2S |
| Molecular Weight | 126.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methyl-1,2-dihydropyrimidine-2-thione (CAS 73547-86-1), molecular formula C5H6N2S and molecular weight 126.18 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, 1-Methyl-1,2-dihydropyrimidine-2-thione is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 126.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-Methyl-1,2-dihydropyrimidine-2-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 | C5H6N2S |
| Molecular Weight | 126.18 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.) | 1978 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-Oxo-1,2-dihydropyrimidine-5-carbaldehyde (CAS 166757-62-6)
- 2-Oxo-1,2-dihydropyrimidine-4-carbaldehyde (CAS 950514-12-2)
- 2-Oxo-2,3-dihydropyrimidine-4-carbonitrile (CAS 96102-45-3)
- 2-Oxo-1,2-dihydropyrimidine-4-carboxamide (CAS 1823869-72-2)
- 2-Oxo-2,3-dihydropyrimidine-4-carbaldehyde oxime (CAS 7460-56-2)
- 6-Oxo-5,6-dihydropyrimidine-4-carboxylic acid (CAS 1860506-22-4)
- 6-Oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 65754-04-3)
- 2-Oxo-1,2-dihydropyrimidine-4-carboxylic Acid (CAS 89379-73-7)
Recommended Standards
- 1H-Pyrrole-3-carbothioamide (CAS 90980-16-8)
- 2-(Thiophen-2-yl)oxirane (CAS 66256-03-9)
- 1h-Pyrrole-2-carbothioamide (CAS 37488-45-2)
- 2-(Thiophen-3-yl)oxirane (CAS 68277-38-3)
- 3,5-Difluoro-N-(2-methylbutyl)aniline (CAS 1040006-11-8)
- 3-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]-2-hydroxy-propanoic acid (CAS 2412988-79-3)
- (S)-2-(Methyl((1-methylpyrrolidin-2-yl)methyl)amino)ethanol (CAS 1078727-58-8)
- 1-[2-(Trifluoromethyl)phenyl]pentan-1-one (CAS 42916-64-3)
- 6-Methoxyquinazoline-2,4(1H,3H)-dione (CAS 32618-84-1)
- 1-Oxa-6-azaspiro[3.3]heptane oxalate(2:1) (CAS 1523606-38-3)
- 4,4'-(Pyrimidine-2,4-diyl)dianiline (CAS 85489-56-1)
- Methyl 2-(6-formyl-2,3-dimethoxyphenyl)acetate (CAS 142998-43-4)
- 1-Ethyl-6-fluoro-7-morpholino-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 70458-98-9)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
Why CATO?
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