4-Oxo-2-thioxo-1,2,3,4-tetrahydroquinazoline-6-carboxylic acid CAS 34330-02-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 34330-02-4 |
| Molecular Formula | C9H6N2O3S |
| Molecular Weight | 222.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Oxo-2-thioxo-1,2,3,4-tetrahydroquinazoline-6-carboxylic acid (CAS 34330-02-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H6N2O3S. Molecular weight: 222.22 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H6N2O3S |
| Molecular Weight | 222.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Oxo Standards
- Ethyl 2-thioxo-2,3-dihydro-1H-benzo[d]imidazole-5-carboxylate (CAS 92807-00-6)
- 2-(4-Methyl-6-thioxo-1,6-dihydropyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352484-90-2)
- 2-(6-Thioxo-1,6-dihydropyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352495-34-1)
- 2-(2-Thioxo-1,2-dihydropyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352495-42-1)
- 1-(2-(2-Thioxo-1,2-dihydropyridin-3-yl)pyrrolidin-1-yl)ethanone (CAS 1352525-57-5)
- 2-((4-Methyl-5-thioxo-4,5-dihydro-1,3,4-thiadiazol-2-yl)thio)acetic acid (CAS 573948-30-8)
- Ethyl (3-thioxo-3H-1,2,4-dithiazol-5-yl)carbamate (CAS 36289-42-6)
- 2-((4-Methyl-5-thioxo-4,5-dihydro-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 834899-94-4)
Recommended Standards
- 4-Oxo-2-sulfanyl-3,4-dihydroquinazoline-7-carboxylic acid (CAS 422277-16-5)
- 5-(2-furylmethylene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (CAS 27430-18-8)
- 4-(6-Fluoro-1H-benzo[d]imidazol-2-yl)butanoic acid (CAS 876716-08-4)
- 3-(3,4-Dichlorobenzyl)-2,2-dimethyl-2,3-dihydroquinazolin-4(1H)-one (CAS 866043-33-6)
- 4-(p-Tolyl)pyridine (CAS 4423-10-3)
- 1-(1,5-Dimethyl-1h-pyrazol-4-yl)thiourea (CAS 1004451-60-8)
- 4-(3-Methyloxetan-3-yl)aniline (CAS 1225380-12-0)
- Obeticholic Acid Impurity 32 (CAS CATO-C4X-115332)
- Daprodustat impurity 9 (CAS CATO-C4X-24079)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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