(E)-4-(Phenyldiazenyl)benzoic Acid CAS 37790-20-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 37790-20-8 |
| Molecular Formula | C13H10N2O2 |
| Molecular Weight | 226.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-(Phenyldiazenyl)benzoic Acid (CAS 37790-20-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H10N2O2. Molecular weight: 226.23 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H10N2O2 |
| Molecular Weight | 226.23 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.) | 1967 |
| Nitrogen Atoms | 2 |
Related E Standards
- 4-Ethyl-2-(phenyldiazenyl)phenol (CAS 642441-06-3)
- 4-Methyl-6-(phenyldiazenyl)benzene-1,3-diamine (CAS 5042-54-6)
- 4-(Phenyldiazenyl)benzamide (CAS 29530-53-8)
- 2-(Phenyldiazenyl)benzene-1,3-diol (CAS 67503-46-2)
- Bis(phenyldiazenyl)methanone (CAS 1900-38-5)
- N-(4-(phenyldiazenyl)phenyl)acetamide (CAS 4128-71-6)
- (E)-(4-(phenyldiazenyl)phenyl)methanol (CAS 65926-74-1)
- (4-(Phenyldiazenyl)phenyl)methanamine (CAS 46739-83-7)
Recommended Standards
- (E)-3-(4-Nitrostyryl)pyridine (CAS 5847-74-5)
- 1-((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)pyridin-2(1H)-one (CAS 300398-03-2)
- (E)-2-(3-nitrostyryl)pyridine (CAS 55532-26-8)
- 1-(2-Phenoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole (CAS 1205683-33-5)
- N,5-Dimethyl-4,5-dihydro-1H-pyrazole-1-carboxamide (CAS 71233-33-5)
- 1-benzyl 4-tert-butyl piperidine-1,4-dicarboxylate (CAS 882738-24-1)
- 6alpha-Hydroxytestosterone (CAS 2944-87-8)
- 2,6-Difluoro-N-(4-(4-methylpyridin-3-yl)phenyl)benzamide (CAS 1108684-81-6)
- 1-(Hydroxymethyl)-3-cyclopentene (CAS 25125-21-7)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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