Pigment Red 31 CAS 6448-96-0
| CAS No. | 6448-96-0 |
| Molecular Formula | C31H23N5O6 |
| Molecular Weight | 561.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Pigment Red 31 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Pigment Red 31 (CAS 6448-96-0), a certified reference material (molecular formula C31H23N5O6, MW 561.54 g/mol) for analytical method development and quality control.
The molecular framework of Pigment Red 31 (C31H23N5O6) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Pigment Red 31 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 | C31H23N5O6 |
| Molecular Weight | 561.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 5 |
Related Pigment Standards
Recommended Standards
- N-{4-[(1Z)-1-{[(2,4-dichlorophenyl)methoxy]imino}ethyl]phenyl}-2-(2-phenyladamantan-2-yl)acetamide (CAS 400083-41-2)
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- Methyl 2-amino-4,6-dichloronicotinate (CAS 1044872-40-3)
- 2-Chloro-4-methylquinolin-6-ol (CAS 41957-91-9)
- 3-Nitro-N-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 1309980-15-1)
- 1-(3-Fluorophenyl)cyclohexylamine (CAS 125827-86-3)
- (Z)-5-Amino-3-(2-(benzo[d][1,3]dioxol-5-yl)-1-cyanovinyl)-1H-pyrazole-4-carbonitrile (CAS 354158-98-8)
- 2-Methyl-7-nitrobenzo[d]oxazole (CAS 74255-38-2)
- Ethyl 2-(1h-indazol-1-yl)acetate (CAS 954116-84-8)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
Why CATO?
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