Ethyl 3-hydroxy-7-methyl-1H-indole-2-carboxylate CAS 459818-00-9
| CAS No. | 459818-00-9 |
| Molecular Formula | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 3-hydroxy-7-methyl-1H-indole-2-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.24 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).
Ethyl 3-hydroxy-7-methyl-1H-indole-2-carboxylate (CAS 459818-00-9), molecular formula C12H13NO3 and molecular weight 219.24 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures Ethyl 3-hydroxy-7-methyl-1H-indole-2-carboxylate 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 | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 3-hydroxy-5-methyl-1H-indole-2-carboxylate (CAS 1060803-17-9)
- 3-Hydroxy-1-isobutylpyrido[2,3-b]pyrazin-2(1H)-one (CAS 1443285-87-7)
- Ethyl 3-hydroxy-4-methyl-1H-indole-2-carboxylate (CAS 153501-38-3)
- 7-Hydroxy-3-methyl-1H,3H,3aH,4H,5H-[1,3]oxazolo[3,4-a]quinolin-1-one (CAS 1824633-17-1)
- (R)-2-(4-Hydroxy-2-butyl)isoindoline-1,3-dione (CAS 245728-73-8)
- (S)-2-(4-Hydroxy-2-butyl)isoindoline-1,3-dione (CAS 545376-10-1)
- 1-Ethyl-5-hydroxy-2-methyl-1h-indole-3-carboxylic acid (CAS 38189-61-6)
- 2-(1-Hydroxy-2-methylpropan-2-yl)-2,3-dihydro-1h-isoindole-1,3-dione (CAS 4490-74-8)
Recommended Standards
- Ethyl 3-hydroxy-1-methyl-1H-indole-2-carboxylate (CAS 42871-90-9)
- Ethyl 3-isocyanato-3-phenylpropanoate (CAS 88636-83-3)
- Ethyl 3-(hydroxymethyl)-1H-indole-2-carboxylate (CAS 666752-02-9)
- Ethyl 3-phenyl-4,5-dihydroisoxazole-5-carboxylate (CAS 50899-14-4)
- Benzyl [1,3'-biazetidin]-3-ylcarbamate dihydrochloride (CAS 1026796-76-8)
- 5-((3-Methoxyphenyl)amino)-6-methyl-1,2,4-triazin-3(2H)-one (CAS 459213-93-5)
- Ac-Tyr-OMe (CAS 2440-79-1)
- 3,4-Dichloro-2-(difluoromethoxy)benzotrifluoride (CAS 1803713-27-0)
- Carboxyamidotriazole Impurity 2 (CAS 99508-26-6)
- 2-Ethylphenyl 3-piperidinyl ether hydrochloride (CAS 1185297-95-3)
- 4-(Methylthio)-N-(4-sulfamoylphenyl)benzamide (CAS 855245-22-6)
- 2-Cyclopropoxy-4-iodobenzamide (CAS 1243354-33-7)
- Methyl 3-(pyridin-2-yl)-1H-1,2,4-triazole-5-carboxylate (CAS 1785759-17-2)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
Why CATO?
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