5-Methyl-4,5-dihydropyrrolo[4,3,2-de]quinoline-7,8(1H,3H)-dione CAS 138683-67-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138683-67-7 |
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Methyl-4,5-dihydropyrrolo[4,3,2-de]quinoline-7,8(1H,3H)-dione (CAS 138683-67-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H10N2O2. Molecular weight: 202.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1996 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 1-Methyl-4,5-dihydropyrrolo[4,3,2-de]quinoline-7,8(1H,3H)-dione (CAS 138683-68-8)
- 4-Oxo-4,5-dihydropyrrolo[1,2-a]quinoxaline-7-carbonitrile (CAS 159548-99-9)
- 3,5-dihydropyrrolo[2,3-c]quinolin-4-one (CAS 1173292-63-1)
- 4-Phenyl-3,4-dihydropyrrolo[1,2-a]pyrazin-1(2H)-one (CAS 154283-98-4)
- 107474-65-7 Methyl 3,6-dihydropyrrolo-[3,2-e]indole-2-carboxylate (CAS 107474-65-7)
- 2,6-Dihydropyrrolo[2,3-g]indazole-7,8-dione (CAS 73907-94-5)
- 4-oxo-3,5-dihydropyrrolo[2,3-c]quinoline-1-carbonitrile (CAS 503272-04-6)
- 3-Methyl-3,10-dihydropyrrolo[3,2-a]carbazole (CAS 1607470-20-1)
Recommended Standards
- Methyl 2-(quinoxalin-5-yl)acetate (CAS 1383625-69-1)
- 1-Methyl-2-phenyl-1,2-dihydropyridazine-3,6-dione (CAS 13817-74-8)
- N-(isoxazol-4-yl)-2-phenylacetamide (CAS 1389313-62-5)
- 2,2,2-Trifluoroethyl n-(3,4-diethoxyphenyl)carbamate (CAS 95261-54-4)
- Pyridine hydrobromide (CAS 18820-82-1)
- 5-(Hydroxymethyl)-3-methyl-1,3-thiazol-2(3H)-one (CAS 2091180-64-0)
- 1,3-Dimethyl-5H-pyrido[4,3-b]indole (CAS 46382-84-7)
- Methyl 3-(3-bromo-4-hydroxyphenyl)-2-(hydroxyimino)propanoate (CAS 1407513-66-9)
- (E)-2-(4-ethoxystyryl)-4H-benzo[e][1,3]oxazin-4-one (CAS 380643-54-9)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
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