5-methyl-3,5-dihydro-4H-pyridazino[4,5-b]indol-4-one CAS 73918-69-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 73918-69-1 |
| Molecular Formula | C11H9N3O |
| Molecular Weight | 199.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-methyl-3,5-dihydro-4H-pyridazino[4,5-b]indol-4-one (CAS 73918-69-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H9N3O. Molecular weight: 199.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H9N3O |
| Molecular Weight | 199.21 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 3 |
Related methyl Standards
- 1,3-Dihydro-3-methyl-2H-imidazo[4,5-f]quinolin-2-one 144486-08-8 2-Hydroxy-IQ 3-Methyl-2-hydroxy-3H-imidazo[4,5-f]quinoline (CAS 144486-08-8)
- 2-(2,3-Dihydro-1h-1,3-benzodiazol-2-ylidene)-3-oxobutanenitrile (CAS 301344-08-1)
- 2,3-Dihydro-1H-pyrano[3,2-f]quinolin-1-one (CAS 5252-47-1)
- 4-Oxo-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde (CAS 386715-47-5)
- 4-Oxo-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-6-carbaldehyde (CAS 889951-29-5)
- (5,6-Dihydro-1,4-dioxin-2-yl)(morpholino)methanone (CAS 1240823-73-7)
- 3,4-Dihydro-2H-benzo[b][1,4,5]oxathiazepine 1,1-dioxide, 97% (CAS 1799973-91-3)
- 2,3-Dihydro-1H-pyrrolo[2,3-b]pyridine-1-sulfonamide (CAS 1882065-27-1)
Recommended Standards
- 5-methyl-1H,2H-[1,2,4]triazolo[4,3-a]quinolin-1-one (CAS 41493-62-3)
- 5-methyl-4-oxo-3H,4H-pyrrolo[2,1-f][1,2,4]triazine-6-carboxylic acid (CAS 310435-15-5)
- 5-Amino-3-methyl-1-(pyridin-2-yl)-1H-pyrazole-4-carbonitrile (CAS 76982-32-6)
- 2-Amino-4-piperazino-6-(3,4-dimethoxyphenyl)pteridine (CAS 278800-16-1)
- 2-benzyl-1,3,5-trimethoxybenzene 23418-82-8 AR-1D9112 (CAS 23418-82-8)
- 1-Pentyl-1H-indole-2,3-dione (CAS 4290-90-8)
- 2-(2-Chloro-4-fluorophenoxy)propanohydrazide 588677-35-4 6184AE C9H10ClFN2O2 (CAS 588677-35-4)
- (R)-tert-Butyl 2-methyl-3-oxopiperazine-1-carboxylate (CAS 1629229-82-8)
- Azepinomycin 3-Ribofuranoside (CAS 115173-45-0)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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