2-(8-Methyl-4-oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-3-yl)acetic acid CAS 1031669-77-8
| CAS No. | 1031669-77-8 |
| Molecular Formula | C13H11N3O3 |
| Molecular Weight | 257.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(8-Methyl-4-oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-3-yl)acetic acid (CAS 1031669-77-8) is a high-purity analytical reference standard with the molecular formula C13H11N3O3 and a molecular weight of 257.24 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 2-(8-Methyl-4-oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-3-yl)acetic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 257.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 2-(8-Methyl-4-oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-3-yl)acetic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H11N3O3 |
| Molecular Weight | 257.24 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Methyl 4-aminooxanthrene-2-carboxylate (CAS 1020242-38-9)
- 3'-o-Aminothymidine (CAS 103251-38-3)
- 2-(Nicotinoyloxy)-2-phenylacetic acid (CAS 101977-74-6)
- 2-Nitro-N-(pyridin-2-ylmethyl)benzamide (CAS 104202-21-3)
- 6-Hydroxy-2-oxo-2H-pyran-4-yl acetate (CAS 6630-34-8)
- 1-(3-Amino-5-phenylthiophen-2-yl)ethan-1-one (CAS 105707-24-2)
- 4-((5,6-Dimethyl-1H-benzo[d]imidazol-1-yl)sulfonyl)-N,N-dimethylbenzenesulfonamide (CAS 606131-21-9)
- 4-Chloro-1-(2-ethylcyclohexyl)-1h-pyrazol-3-amine (CAS 1339011-85-6)
- 1,4-Benzenedicarboxylic acid, polymer with 1,4-butanediol and hexanedioic acid (CAS 60961-73-1)
- 2-Amino-2-(1H-pyrrol-2-yl)acetic acid (CAS 89532-83-2)
- 5-(4-(Dimethylamino)piperidin-1-yl)picolinaldehyde (CAS 1779122-14-3)
- 2-(4-Ethylphenoxy)-1-(piperazin-1-yl)propan-1-one (CAS 1016853-66-9)
- 4-Chloroisoquinolin-7-ol (CAS 1888902-20-2)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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