Disperse Orange 61 CAS 55281-26-0
| CAS No. | 55281-26-0 |
| Molecular Formula | C17H15Br2N5O2 |
| Molecular Weight | 481.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Disperse Orange 61 (C17H15Br2N5O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Disperse Orange 61 (CAS 55281-26-0) is a high-purity analytical reference standard with the molecular formula C17H15Br2N5O2 and a molecular weight of 481.14 g/mol.
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 Disperse Orange 61 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 | C17H15Br2N5O2 |
| Molecular Weight | 481.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
Related Disperse Standards
Recommended Standards
- (R)-2-((R)-1-(4-Amino-2-oxopyrimidin-1(2H)-yl)-2-oxoethoxy)-3-oxopropyl tetrahydrogen triphosphate (CAS 75567-73-6)
- Dodecamethylcyclohexasiloxane-d36 (CAS 206533-14-4)
- 2-(3,5-Dibromo-4-((2-ethylquinolin-6-yl)oxy)phenoxy)acetic acid (CAS 918946-57-3)
- Opicapone impurity 15 (CAS CATO-C4X-240415)
- 2-(4-Chlorophenyl)-N’-hydroxyacetimidamide (CAS 6965-39-5)
- 5-Cinnamyl-7-(morpholinosulfonyl)-1,2,3,3a-tetrahydropyrrolo[1,2-a]quinoxalin-4(5H)-one (CAS 1031237-13-4)
- 4-({4-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]-1H-imidazol-1-yl}methyl)aniline (CAS 1031606-14-0)
- (E)-1-Chloro-2-(2-nitrovinyl)benzene (CAS 22568-07-6)
- N-(4-Ethynylphenyl)benzenesulfonamide (CAS 383147-75-9)
- 2-amino-5-Pyrimidinesulfonamide (CAS 99171-23-0)
- Benzonatate (CAS 104-31-4)
- Fmoc-D-Abu-OH (CAS 170642-27-0)
- 4-(1,3-Diethyl-1H-pyrazol-5-yl)piperidine (CAS 442876-37-1)
- Galanin (1-13)-Neuropeptide Y (25-36) amide (CAS 147138-51-0)
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