4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol CAS 5392-23-4
| CAS No. | 5392-23-4 |
| Molecular Formula | C7H12N2S |
| Molecular Weight | 156.25 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 4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol.
4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol (CAS 5392-23-4), molecular formula C7H12N2S and molecular weight 156.25 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, 4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 156.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H12N2S |
| Molecular Weight | 156.25 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related trimethyl Standards
- 4,6,6-Trimethyl-6H-1,3-thiazin-2-amine (CAS 2953-81-3)
- 3557AF 4,4,6-Trimethyl-4,5-dihydropyrimidine-2-thiol 933-49-3 C7H12N2S (CAS 933-49-3)
- 2-(3,4,5-trimethyl-1H-pyrazol-1-yl)acetaldehyde (CAS 1170098-09-5)
- 2,2,4-Trimethyl-1,4-diazepan-5-one (CAS 1896457-91-2)
- 4,4,6-Trimethyl-2-vinyl-[1,3]dioxane (CAS 22634-89-5)
- 1,3,6-Trimethyl Uracil (CAS 13509-52-9)
- 1,3,4-trimethyl-1H-pyrrole-2-carboxylic acid (CAS 1215981-34-2)
- 1,4,4-Trimethyl-L-proline (CAS 1443245-02-0)
Recommended Standards
- 4-(Thiophen-3-yl)butan-1-ol (CAS 22053-88-9)
- 4-(Thiazol-2-yl)butan-2-amine (CAS 933743-87-4)
- 4-Butyl-1,3-thiazol-2-amine (CAS 53181-04-7)
- 4-(butan-2-yl)-1,3-thiazol-2-amine (CAS 79932-24-4)
- 3-Nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 871329-51-0)
- 1-Benzyl-4-bromo-3-methyl-1H-pyrazole-5-carbonitrile (CAS 1352925-64-4)
- (1-(Aminomethyl)cyclobutyl)(tetrahydrofuran-2-yl)methanol (CAS 1403565-70-7)
- 8-Amino-N-(3-bromophenyl)-3,4-dihydro-2H-1,4-ethanothieno[2,3-b][1,5]naphthyridine-7-carboxamide (CAS 889955-64-0)
- (3-Cyano-2-cyclopropylphenyl)boronic acid (CAS 2225155-49-5)
- 1-(2,4-Dimethoxybenzyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 304858-45-5)
- 2-Oxobicyclo[2.1.1]Hexane-1-carbonitrile (CAS 151445-29-3)
- 3-(3,5-Dimethylpyridin-4-yl)propan-1-amine (CAS 1393543-15-1)
- 3-(3-Nitrophenyl)-1H-pyrazol-5-amine hydrochloride (CAS 850869-65-7)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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