2-(4-Dipropylaminophenylazo)benzoic acid CAS 2641-01-2
| CAS No. | 2641-01-2 |
| Molecular Formula | C19H23N3O2 |
| Molecular Weight | 325.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Dipropylaminophenylazo)benzoic acid 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.
2-(4-Dipropylaminophenylazo)benzoic acid (CAS 2641-01-2), molecular formula C19H23N3O2 and molecular weight 325.40 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-Dipropylaminophenylazo)benzoic acid (C19H23N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 325.40 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C19H23N3O2 |
| Molecular Weight | 325.40 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.) | 1957 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2-((2,5-Dimethylphenyl)amino)-2-oxoethyl 2-phenylbutanoate (CAS 380163-18-8)
- 2-(4-Methylpiperazin-1-yl)-N-(4-phenoxyphenyl)acetamide (CAS 69837-92-9)
- 2-((2,4-Dimethylphenyl)amino)-2-oxoethyl 2-phenylbutanoate (CAS 378225-83-3)
- 2-Benzamido-N-(3-(dimethylamino)propyl)benzamide (CAS 947822-53-9)
- Pafuramidine (CAS 186953-56-0)
- N-(2-((2,6-Dichlorophenyl)amino)-2-oxoethyl)-4-(1,3-dioxoisoindolin-2-yl)-N-methylbutanamide (CAS 791598-98-6)
- 1-(Pyrazin-2-yl)piperidin-3-amine dihydrochloride (CAS 1332529-43-7)
- (Chloromethyl)dimethyl[(trimethylsilyl)methyl]silane (CAS 18306-73-5)
- 2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)-N-(3,5-dimethylphenyl)-N-methylthiophene-3-sulfonamide (CAS 1207022-15-8)
- 4-{5-[(1H-pyrazol-1-yl)methyl]-1,3-thiazol-2-yl}morpholine (CAS 477762-17-7)
- cis-Methyl 4-hydroxypiperidine-2-carboxylate (CAS 133192-44-6)
- [1,1':4',1''-Terphenyl]-2,2'',4,4''-tetracarboxylic acid (CAS 1580004-08-5)
- 4-fluoro-2-methyl-2,3-dihydro-1H-isoindole-1,3-dione (CAS 61864-48-0)
- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
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