890591-56-7 3-(4-ethoxyphenyl)-1H-pyrazole-5-carboxylic acid DTXSID10390262 CAS 890591-56-7
| CAS No. | 890591-56-7 |
| Molecular Formula | C12H12N2O3 |
| Molecular Weight | 232.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 890591-56-7 3-(4-ethoxyphenyl)-1H-pyrazole-5-carboxylic acid DTXSID10390262 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.
890591-56-7 3-(4-ethoxyphenyl)-1H-pyrazole-5-carboxylic acid DTXSID10390262 (CAS 890591-56-7), molecular formula C12H12N2O3 and molecular weight 232.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 890591-56-7 3-(4-ethoxyphenyl)-1H-pyrazole-5-carboxylic acid DTXSID10390262 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12N2O3 |
| Molecular Weight | 232.24 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related ethoxyphenyl Standards
- 1-(4-Ethoxyphenyl)-1,4-dihydropyrazine-2,3-dione (CAS 1031557-37-5)
- 5-(2-Ethoxyphenyl)-1h-pyrazole-4-carboxylic acid (CAS 1152542-59-0)
- 5-(3-Ethoxyphenyl)pyrimidine-2,4-diol (CAS 1261942-74-8)
- 6-(4-Ethoxyphenyl)pyrimidine-2,4(1H,3H)-dione (CAS 1368650-74-1)
- 1-(2-Ethoxyphenyl)-1,4-dihydropyrazine-2,3-dione (CAS 900012-17-1)
- 3-(2-Ethoxyphenyl)-1H-pyrazole-5-carboxylic acid (CAS 890621-20-2)
- 5-(4-Ethoxyphenyl)-1h-pyrazole-4-carboxylic acid (CAS 879996-67-5)
- 5-(2-Ethoxyphenyl)cyclohexane-1,3-dione (CAS 1092288-99-7)
Recommended Standards
- (S)-2-methyl-5-(2-(oxiran-2-ylmethoxy)phenyl)-2H-tetrazole 391926-60-6 A1-00589 (CAS 391926-60-6)
- Lenvatinib Impurity 60 (CAS CATO-C4X-114060)
- α-(1-Methoxypropylidene)-4-nitro-benzeneacetonitrile (CAS 885428-60-4)
- Lamivudine-13C-15N2 (CAS 134678-17-4 (unlabelled))
- 2-(2-Allylidenehydrazinyl)thiazole-5-carboxylic acid (CAS 769087-20-9)
- Benzyl (4-oxotetrahydro-2H-pyran-3-yl)carbamate (CAS 1418199-64-0)
- 2-(3-bromoazetidin-1-yl)acetonitrile (CAS 420820-65-1)
- Butyl 4-(5-ethoxy-1-methyl-4-oxo-1,4-dihydropyridine-2-carboxamido)benzoate (CAS 1105220-90-3)
- 2,3,5-Tribromopyrazine (CAS 32314-09-3)
- Travoprost Impurity 17 (CAS 208114-58-3)
- 1-Acetyl-5-bromoindoline-7-sulfonyl chloride (CAS 30691-46-4)
- Ethyl (E)-3-(2-chloro-3,4-dimethoxyphenyl)acrylate (CAS 175135-96-3)
- Methyl 4-(aminomethyl)pyrimidine-2-carboxylate (CAS 944902-00-5)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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