(E)-3-(4-Ethylphenyl)acrylic acid CAS 120680-98-0
| CAS No. | 120680-98-0 |
| Molecular Formula | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies (E)-3-(4-Ethylphenyl)acrylic acid (CAS 120680-98-0), a certified reference material (molecular formula C11H12O2, MW 176.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H12O2, (E)-3-(4-Ethylphenyl)acrylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), (E)-3-(4-Ethylphenyl)acrylic 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 | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related E Standards
- (E)-3-(2-ethylphenyl)acrylic acid (CAS 103988-23-4)
- 4-Ethylphenyl acrylate (CAS 142913-11-9)
- 100058-36-4 3-(4-Ethylphenyl)tetrahydrofuran C12H16O Y6757 (CAS 100058-36-4)
- 4-(2-Ethylphenyl)butan-2-one (CAS 1369097-82-4)
- 1-(3-Ethylphenyl)-2-methylpropan-1-one (CAS 1443306-64-6)
- (2-(2-Ethylphenyl)cyclopropyl)methanol (CAS 1517037-41-0)
- 4-(4-Ethylphenyl)butanal (CAS 183129-85-3)
- 1-(2-Ethylphenyl)-2-methylpropan-1-one (CAS 99632-24-3)
Recommended Standards
- 3,3-Dimethyl-1,3-dihydroisobenzofuran-5-carbaldehyde (CAS 1204343-94-1)
- 2-Methyl-1,3-dioxolane-2-propanoic Acid Methyl Ester-d2 (CAS 1216512-70-7)
- 3-(4-Methoxyphenyl)-2-methylprop-2-enal (CAS 119711-59-0)
- 1-Phenylpent-2-yne-1,5-diol (CAS 1217485-27-2)
- (S)-3-Amino-3-(3,4-bis(trifluoromethyl)phenyl)propan-1-ol (CAS 1336772-78-1)
- 5-(2,2,2-Trifluoroethyl)octahydrobenzofuran (CAS 1212378-67-0)
- (R)-4-chloro-6-methyl-2,3-dihydro-1H-inden-1-amine (CAS 1213223-64-3)
- Isosaponarin (CAS 19416-87-6)
- Acebutolol Hydrochloride - Impurity E (Freebase) (CAS 27783-53-5)
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- Ethyl 2-(4-hydroxy-2-methyl-6-oxo-1,6-dihydropyrimidin-5-yl)acetate (CAS 1245643-23-5)
- N1-Butyl-N1-ethyl-N2-methylethane-1,2-diamine (CAS 1021145-64-1)
- Insulin Degludec Impurity 20 (CAS CATO-C4X-215720)
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