21905-86-2 548UJ2I0O2 Cinnoline-4-carboxylic acid EINECS 244-650-5 NSC 75570 UNII-548UJ2I0O2 CAS 21905-86-2
| CAS No. | 21905-86-2 |
| Molecular Formula | C9H16N2O2 |
| Molecular Weight | 184.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 21905-86-2 548UJ2I0O2 Cinnoline-4-carboxylic acid EINECS 244-650-5 NSC 75570 UNII-548UJ2I0O2.
21905-86-2 548UJ2I0O2 Cinnoline-4-carboxylic acid EINECS 244-650-5 NSC 75570 UNII-548UJ2I0O2 (CAS 21905-86-2), molecular formula C9H16N2O2 and molecular weight 184.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 21905-86-2 548UJ2I0O2 Cinnoline-4-carboxylic acid EINECS 244-650-5 NSC 75570 UNII-548UJ2I0O2 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 184.24 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 21905-86-2 548UJ2I0O2 Cinnoline-4-carboxylic acid EINECS 244-650-5 NSC 75570 UNII-548UJ2I0O2 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 | C9H16N2O2 |
| Molecular Weight | 184.24 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Trelagliptin Impurity 54 (CAS 389623-44-3)
- 2764-72-9 A9A615U4MP Diquat Diquat [ANSI:BSI:ISO] 6,7-Dihydrodipyrido(1,2-a:2',1'-c)pyrazinediylium Dipyrido(1,2-a:2',1'-c)pyrazinediium, 6,7-dihydro- 9,10-Dihydro-8a,10a-diazoniaphenanthrene 9,10-Dihydro-8a,10a-diazoniaphenanthrene ion 6,7-Dihydrodipyrido(1,2-a:2',1'-c)pyrazinediium 6,7-Dihydrodipyrido(1,2-a:2',1'-c)pyrazine-5,8-di-ium Dipyrido(1,2-a:2',1'-c)pyrazinediium, 6,7-dihydro- (8CI)(9CI) Diquat dication EINECS 220-433-0 1,1'-Ethylene-2,2'-bipyridyldylium ion 1,1'-Ethylene-2,2'-bipyridylium ion UNII-A9A615U4MP (CAS 2764-72-9)
- Tirofiban Impurity 63 (CAS 4916-57-8)
- 1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid methyl ester 351439-07-1 A822605 methyl 1H-pyrrolo[2,3-b]pyridine-4-carboxylate (CAS 351439-07-1)
- methyl 5-methoxypyrimidine-2-carboxylate (CAS 1415800-40-6)
- 1-azido-4-chloro-2-(trifluoromethyl)benzene (CAS 1152586-17-8)
- 4-Amino-N-(2-chloro-4-fluorophenyl)benzenesulfonamide (CAS 1152538-43-6)
- 2-(4-Ethynylphenyl)-1,3-dioxolane (CAS 138853-09-5)
- 5-Chloro-1,4-dihydropyrimido[5,4-e][1,2,4]triazine (CAS 91115-01-4)
- 1-(1-(Tert-butoxycarbonyl)piperidin-3-yl)-5-methyl-1h-1,2,3-triazole-4-carboxylic acid (CAS 1334493-08-1)
- [2-Amino-1-(4-fluorophenyl)ethyl]dimethylamine (CAS 842954-71-6)
- H-2-Nal-OH (CAS 58438-03-2)
- BU 224 hydrochloride, 98% (CAS 187173-05-3)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
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