Quinazoline-2(1H)-thione CAS 40730-91-4
| CAS No. | 40730-91-4 |
| Molecular Formula | C8H6N2S |
| Molecular Weight | 162.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Quinazoline-2(1H)-thione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Quinazoline-2(1H)-thione (CAS 40730-91-4), molecular formula C8H6N2S and molecular weight 162.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6N2S, Quinazoline-2(1H)-thione contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 162.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C8H6N2S |
| Molecular Weight | 162.21 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Quinazoline Standards
- Quinazoline-4-thiol (CAS 3337-86-8)
- Quinazoline-2,4-diol (CAS 1094158-39-0)
- Quinazoline-2,6-diamine (CAS 882670-95-3)
- Quinazoline-5,8-dione (CAS 24271-82-7)
- quinazoline-4-carbonitrile (CAS 36082-71-0)
- Quinazoline-8-carbaldehyde (CAS 1823899-37-1)
- Quinazoline-2-carbaldehyde (CAS 875251-57-3)
- Quinazoline-5-carbaldehyde (CAS 873653-76-0)
Recommended Standards
- Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000 (CAS 26837-42-3)
- N-{bicyclo[1.1.1]pentan-1-yl}aminosulfonamide (CAS 2169474-91-1)
- Quinoxaline-5-thiol (CAS 760121-40-2)
- N-(2-amino-2-oxoethyl)-N-(methylthio)acetamide (CAS 91188-40-8)
- 4-(Dodecyloxy)phthalonitrile (CAS 161082-75-3)
- 4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 128276-98-2)
- Ethyl 2-cyano-2-(4-cyanophenyl)acetate (CAS 120885-48-5)
- 2-(Difluoromethyl)-5-hydroxypyridine-4-carbonyl chloride (CAS 1805307-02-1)
- 2-(dimethoxymethyl)cyclopentanone (CAS 15839-44-8)
- (S)-1-(3-(Ethyl(2-hydroxyethyl)amino)pyrrolidin-1-yl)ethanone (CAS 1354002-61-1)
- Ammonium hexafluorostannate (CAS 16919-24-7)
- Methyl 4,7-Dichloroindole-3-acetate (CAS 2097800-56-9)
- 3-(Pyrimidin-2-ylamino)propanoic acid (CAS 339195-50-5)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
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