4-(Hydroxyamino)-3-nitrobenzoic acid CAS 15150-93-3
| CAS No. | 15150-93-3 |
| Molecular Formula | C7H6N2O5 |
| Molecular Weight | 198.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(Hydroxyamino)-3-nitrobenzoic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(Hydroxyamino)-3-nitrobenzoic acid (CAS 15150-93-3), molecular formula C7H6N2O5 and molecular weight 198.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H6N2O5, 4-(Hydroxyamino)-3-nitrobenzoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 4-(Hydroxyamino)-3-nitrobenzoic 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.
Physical & Chemical Properties
| Molecular Formula | C7H6N2O5 |
| Molecular Weight | 198.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 2 |
Related Hydroxyamino Standards
- 4-(Hydroxyamino)-2-nitrobenzoic acid (CAS 15253-04-0)
- 1-(Hydroxyamino)-3-(4-methylphenoxy)propan-2-ol (CAS 4287-10-9)
- Ethyl 2-(hydroxyamino)-4-oxo-1,4-dihydropyrimidine-5-carboxylate (CAS 660850-30-6)
- 2-(Hydroxyamino)-2-iminoethyl benzoate (CAS 650579-63-8)
- 5-(Hydroxyamino)-4-(methylthio)-2-oxo-2H-pyrrole-3-carboxylic acid (CAS 49601-37-8)
- 5-Hydroxyamino-2-trifluoromethylphenol (CAS 2088942-42-9)
- Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate (CAS 251577-82-9)
- 4-(Hydroxyamino)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 66266-83-9)
Recommended Standards
- 5-Cyano-2-(difluoromethyl)nicotinic acid (CAS 1513851-02-9)
- 2-(3-Nitro-2-oxo-1,2-dihydropyridin-1-yl)acetic acid (CAS 147283-78-1)
- 2-(5-Cyanopyridin-3-yl)-2,2-difluoroacetic acid (CAS 1537689-58-9)
- 4-Acetyl-5-nitro-1h-pyrrole-2-carboxylic acid (CAS 1421601-81-1)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-4-(2,4-dimethoxyphenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 861206-40-8)
- Ethyl 3-(piperidin-2-yl)propanoate hydrochloride (CAS 7599-21-5)
- 4-(4-Fluorophenyl)-3-methylisoxazol-5-amine (CAS 915919-94-7)
- 5-Iodo-2-methyl-1H-benzo[d]imidazole (CAS 2818-70-4)
- Methyl 2-(3,5-dimethoxyphenyl)propanoate (CAS 2023655-08-3)
- 3-Oxo-2-propylisoindoline-4-carboxylic acid (CAS 902448-00-4)
- 2-Cyanoimino-1,3-Thiazolidine (CAS 26364-65-8)
- 1-Methyl-3-octyl-1h-pyrazol-5-amine (CAS 1481851-79-9)
- 2-(6-Cyano-4-iodopyridin-2-yl)acetic acid (CAS 1393530-42-1)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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