3-Methyl-5-nitro-1h-indole-2-carboxylic acid CAS 446830-73-5
| CAS No. | 446830-73-5 |
| Molecular Formula | C10H8N2O4 |
| Molecular Weight | 220.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Methyl-5-nitro-1h-indole-2-carboxylic acid (CAS 446830-73-5) is a high-purity analytical reference standard with the molecular formula C10H8N2O4 and a molecular weight of 220.18 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 3-Methyl-5-nitro-1h-indole-2-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 3-Methyl-5-nitro-1h-indole-2-carboxylic acid 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 | C10H8N2O4 |
| Molecular Weight | 220.18 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 2-Nitro-5-(prop-2-yn-1-ylamino)benzoic acid (CAS 1019386-49-2)
- Methyl 6-nitro-1H-indole-4-carboxylate (CAS 1082040-42-3)
- Methyl 5-nitro-1H-indole-7-carboxylate (CAS 1082040-74-1)
- 2-(6-Nitro-1H-indol-1-yl)acetic acid (CAS 1095507-43-9)
- 3-Methyl-7-nitro-1H-indole-2-carboxylic acid (CAS 115058-18-9)
- 1-methyl-3-nitro-1,2,3,4-tetrahydroquinoline-2,4-dione (CAS 1172850-09-7)
- 6-Nitro-1h-indol-3-yl acetate (CAS 1306604-44-3)
- Methyl 5-nitro-1H-indole-6-carboxylate (CAS 1352394-34-3)
Recommended Standards
- 3-Methyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 893768-52-0)
- 3-Nitro-4-(oxiran-2-ylmethoxy)benzonitrile (CAS 227940-83-2)
- 3-{1,3-dioxo-1h,2h,3h-pyrrolo[3,4-c]pyridin-2-yl}propanoic acid (CAS 681837-30-9)
- 4-((2-Nitrophenoxy)methyl)isoxazole (CAS 872611-08-0)
- N-(3-Ethylphenyl)pyrazine-2-carboxamide (CAS 424805-97-0)
- (4-Ethoxyphenyl)(2-((pyridin-3-ylmethyl)thio)-4,5-dihydro-1H-imidazol-1-yl)methanone (CAS 851807-44-8)
- 2-(Bromomethyl)-5-(difluoromethyl)-6-fluoropyridine-3-carboxylic acid (CAS 1805295-10-6)
- 2-(3-Methoxyphenyl)oxazolo[4,5-b]pyridine (CAS 52333-61-6)
- 2-(((6-Chloropyridazin-3-yl)methyl)amino)ethanol (CAS 1353978-80-9)
- Ethyl 5-propylthiophene-2-carboxylate (CAS 1256286-41-5)
- 3-Iodo-1H,1H,2H,2H,3H,4H,4H-perfluorodecan-1-ol (CAS 16083-68-4)
- 4-Bromo-2-methoxy-1-phenoxy-benzene (CAS 364353-97-9)
- 6,7-Bis(benzyloxy)-4-chloroquinoline-3-carbonitrile (CAS 1822792-24-4)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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