1-Methyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione CAS 90070-29-4
| CAS No. | 90070-29-4 |
| Molecular Formula | C10H13N3S |
| Molecular Weight | 207.30 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 1-Methyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione.
CATO supplies 1-Methyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione (CAS 90070-29-4), a certified reference material (molecular formula C10H13N3S, MW 207.30 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 1-Methyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 207.30 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.
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 | C10H13N3S |
| Molecular Weight | 207.30 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Trans-[4-(methylamino)cyclohexyl]methanesulfonic acid (CAS 2124221-12-9)
- Ethyl 2-(methylamino)-2-(o-tolyl)acetate (CAS 1218029-04-9)
- Methyl 3-(methylamino)-4-phenylbutanoate (CAS 1368122-98-8)
- 4-Methyl-2-methylamino-thiazole-5-sulfonic acid amide (CAS 348086-68-0)
- ethyl 2-(methylamino)-3-phenylpropanoate (CAS 740737-56-8)
- 5-(2-(Methylamino)pyridin-4-yl)-1,3,4-thiadiazol-2-amine (CAS 1240521-58-7)
- 2-(6-(Methylamino)-9H-purin-9-yl)acetic acid (CAS 918334-37-9)
- 5-(Methylamino)-N-(1H-1,2,4-triazol-3-yl)furan-2-carboxamide (CAS 826991-26-8)
Recommended Standards
- 1-Allyl-3-(4-methylpyridin-2-yl)thiourea (CAS 66713-62-0)
- 2-(((1-Methyl-4,5-dihydro-1H-imidazol-2-yl)thio)methyl)pyridine (CAS 783247-73-4)
- 1-((Isopropylthio)methyl)-1H-benzo[d][1,2,3]triazole (CAS 302931-68-6)
- 2-((1h-Benzo[d]imidazol-2-yl)thio)-N-methylethan-1-amine (CAS 769055-86-9)
- 3,5-Dichloro-N-(6-methyl-4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)benzamide (CAS 312941-26-7)
- (4-Methoxybenzyl)-1,2,4-thiadiazol-5-amine (CAS 1443376-74-6)
- 1-(2-Chlorophenyl)-3-(2-(furan-3-yl)ethyl)urea (CAS 1428356-86-8)
- Indocyanine Green Impurity 18 (CAS CATO-C4X-250318)
- 5-Bromo-2-chloro-N-(pyridin-2-ylmethyl)benzamide (CAS 701256-97-5)
- Furosemide Impurity 22 (CAS 82747-56-6)
- 2-(3,4-Dimethoxyphenyl)-1H-indole-3-carboxylic acid (CAS 1082551-71-0)
- azepane-4-carboxylic acid;hydrochloride (CAS 1393449-23-4)
- 1-(2-Fluoropropyl)piperidin-4-amine hydrochloride (CAS 1315499-89-8)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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