7-Methylthieno[2,3-b]quinoline-2-carboxylic acid CAS 333312-06-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 333312-06-4 |
| Molecular Formula | C13H9NO2S |
| Molecular Weight | 243.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Methylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 333312-06-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H9NO2S. Molecular weight: 243.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H9NO2S |
| Molecular Weight | 243.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylthieno Standards
- 6-Methylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 333312-07-5)
- 8-Methylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 333312-05-3)
- 2-((6-Methylthieno[2,3-d]pyrimidin-4-yl)thio)acetic acid (CAS 890014-20-7)
- 2-((6-Methylthieno[2,3-d]pyrimidin-4-yl)thio)acetamide (CAS 876901-73-4)
- (6-Methylthieno[3,4-d][1,3]dioxol-4-yl)(phenyl)methanol (CAS 944522-55-8)
- 3-methylthieno[2,3-b]pyridine-2,5-dicarboxylic acid (CAS 949984-37-6)
- 5-acetyl-3-methylthieno[2,3-b]pyridine-2-carboxylic acid (CAS 1050885-00-1)
- 2-((6-Ethyl-2-methylthieno[2,3-d]pyrimidin-4-yl)amino)acetic acid (CAS 848280-81-9)
Recommended Standards
- 6-Morpholinopyridine-3-sulfonamide (CAS 90648-77-4)
- 8-Hydroxydibenzo[b,f][1,4]thiazepin-11(10H)-one (CAS 3159-06-6)
- 6-Methyl-2-(thiophen-2-yl)-4H-3,1-benzoxazin-4-one (CAS 244205-65-0)
- 2-Allyl-4-[1-(tert-butyldimethylsilanyloxymethyl)-3-methylbutyl]phenol (CAS 885266-51-3)
- Methyl N-(3,5-dichlorophenyl)-N-(methylsulfonyl)glycinate (CAS 425608-86-2)
- 2-(4,6-Diethyl-4,8-dimethyl-2-oxo-4H-pyrrolo[3,2,1-ij]quinolin-1(2H)-ylidene)malononitrile (CAS 774561-61-4)
- Methyl Glycerate (CAS 615-34-9)
- 1-Acetyl-2,2,5,5-tetramethyl-3-pyrroline-3-methanol (CAS 244641-21-2)
- 3-Amino-2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]thieno[2,3-b]pyridine-5-carbonitrile (CAS 321430-65-3)
- [α-Glu](Sidechain trans-position)-Liraglutide (CAS CATO-C4X-199240)
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 13829788188 / jacky.chen@cato-chem.com