Acid Orange 74 CAS 10127-27-2
| CAS No. | 10127-27-2 |
| Molecular Formula | C16H12N5O7S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Acid Orange 74 (CAS 10127-27-2), molecular formula C16H12N5O7SNa and molecular weight 441.35 g/mol, is a CATO reference standard with documented purity and traceability.
Acid Orange 74 (C16H12N5O7SNa) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Acid Orange 74 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H12N5O7S Na |
| Molecular Weight | 441.35 g/mol |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Acid Standards
Recommended Standards
- 2-(6-Chloro-4-methylpyridin-3-yl)ethan-1-amine (CAS 1393570-97-2)
- Benzyl 2-(6-methylpyridin-2-yl)pyrrolidine-1-carboxylate (CAS 1352499-04-7)
- Ethyl 1-(2-morpholinoethyl)-1h-pyrazole-4-carboxylate (CAS 874196-88-0)
- 1-(3-Bromopropyl)-4-ethylbenzene (CAS 181805-79-8)
- 2-(mesitylamino)-9,10-dimethoxy-6,7-dihydro-4H-pyrimido[6,1-a]isoquinolin-4-one (CAS 76536-66-8)
- 4,5-Imidazoledicarboxylic Acid (CAS 570-22-9)
- 7-(2,5-Dimethylthiophen-3-yl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 860648-52-8)
- (1-(3-Methoxy-4-methylphenyl)cyclopropyl)methanamine (CAS 1039953-38-2)
- (3Z)-3-[(3,5-Dimethylphenyl)imino]-1-phenyl-2,3-dihydro-1H-indol-2-one (CAS 303984-61-4)
- Cholecystokinin Octapeptide (sulfated) (H-2060.0005) (CAS 25679-23-6)
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