2-(3-(2-Ethylbutanamido)benzamido)benzoic acid CAS 890982-85-1
| CAS No. | 890982-85-1 |
| Molecular Formula | C20H22N2O4 |
| Molecular Weight | 354.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-(3-(2-Ethylbutanamido)benzamido)benzoic acid (C20H22N2O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(3-(2-Ethylbutanamido)benzamido)benzoic acid (CAS 890982-85-1), molecular formula C20H22N2O4 and molecular weight 354.40 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H22N2O4 |
| Molecular Weight | 354.40 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Ethylbutanamido Standards
- 2-(2-Ethylbutanamido)-4,5-dimethoxybenzoic acid (CAS 378202-24-5)
- 2-(2-Ethylbutanamido)-5,6-dihydro-4h-cyclopenta[b]thiophene-3-carboxylic acid (CAS 757220-67-0)
- 3-(2-Ethylbutanamido)-2-methylbenzoic acid (CAS 890993-40-5)
- 3-(2-Ethylbutanamido)-4-methylbenzoic acid (CAS 915923-14-7)
- 5-(2-Ethylbutanamido)nicotinic acid (CAS 1281394-76-0)
- 3-(2-Ethylbutanamido)benzoic acid (CAS 915923-97-6)
- 4-(2-Ethylbutanamido)benzoic acid (CAS 486440-98-6)
- 2-(2-ethylbutanamido)acetic acid (CAS 98552-89-7)
Recommended Standards
- (H-Cys-Gly-OH)2 (CAS 7729-20-6)
- 2-(3,4-Dimethoxyphenyl)-6-ethoxy-7-methoxynaphthalen-1-ol (CAS 85365-76-0)
- 2-((Pyridin-4-ylmethyl)amino)-N-(quinolin-3-yl)benzamide (CAS 267891-20-3)
- 2-(5-(4-Amino-2-(hydroxymethyl)phenoxy)pentyl)isoindoline-1,3-dione (CAS 5896-92-4)
- 5-(Methylamino)pyrazine-2-carbonitrile (CAS 1342365-74-5)
- ethyl 7-oxo-4,5,6,7-tetrahydro-1,3-benzothiazole-2-carboxylate (CAS 154404-91-8)
- 5-Bromo-2-methyl-4-nitroimidazole (CAS 18874-52-7)
- n-(1-Phenylpropyl)cyclopentanamine (CAS 215713-74-9)
- 5-Bromo-2-phenylindolizine (CAS 1006591-05-4)
- cis-Ethyl 4-(aminomethyl)cyclohexanecarboxylate (CAS 53676-39-4)
- 5-(dimethylamino)furan-2-carbaldehyde (CAS 3680-93-1)
- 1-(Bromomethyl)-1-(difluoromethyl)cyclopropane (CAS 1314393-35-5)
- 2-[(Difluoromethyl)sulfanyl]-3-phenyl-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 477859-73-7)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
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