4-Amino-3-methyl-5-nitrobenzoic Acid CAS 37901-94-3
| CAS No. | 37901-94-3 |
| Molecular Formula | C8H8N2O4 |
| Molecular Weight | 196.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H8N2O4, 4-Amino-3-methyl-5-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 196.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 4-Amino-3-methyl-5-nitrobenzoic Acid (CAS 37901-94-3), a certified reference material (molecular formula C8H8N2O4, MW 196.16 g/mol) for analytical method development and quality control.
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), 4-Amino-3-methyl-5-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 | C8H8N2O4 |
| Molecular Weight | 196.16 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 |
| 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.) | 1967 |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 1-(5-Amino-2-hydroxy-3-nitrophenyl)ethanone (CAS 108129-55-1)
- 2-(4-Amino-2-nitrophenyl)acetic acid (CAS 116435-81-5)
- 2-(4-Amino-3-nitrophenyl)acetic acid (CAS 116435-82-6)
- 2-Amino-6-methyl-4-nitrobenzoic acid (CAS 121285-23-2)
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Recommended Standards
- 4-Amino-2-methyl-5-nitrobenzoic acid (CAS 408507-93-7)
- 4-Hydroxy-3-(methoxycarbonyl)benzoic acid (CAS 41684-11-1)
- 4-[(5-Methylisoxazol-3-yl)amino]-4-oxobut-2-enoic acid (CAS 306935-78-4)
- 4-Hydroxy-5-methylisophthalic acid (CAS 4365-31-5)
- (5-((4-Chlorophenyl)thio)-1-methyl-3-phenyl-1H-pyrazol-4-yl)methanol (CAS 318247-53-9)
- Batatasin III (CAS 56684-87-8)
- 3-Methylbutane-1-sulfonyl Chloride (CAS 22795-37-5)
- 4-Methylpentane-1-sulfonamide (CAS 787540-03-8)
- (R)-heptan-2-amine hydrochloride (CAS 101689-06-9)
- 5-OH-imidacloprid-13C-15N2 (CAS CATO-CCPD102480)
- Methyl-PEG4-acyl chloride (CAS 62124-69-0)
- 2-[3-(Boc-amino)propoxy]benzonitrile (CAS 2006277-77-4)
- Lamotrigine-d3 (CAS 1132746-94-1)
- (Tyr?)-C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 142878-79-3)
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