(E)-3-(o-Tolyl)but-2-enoic acid CAS 100994-10-3
| CAS No. | 100994-10-3 |
| Molecular Formula | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-3-(o-Tolyl)but-2-enoic acid.
(E)-3-(o-Tolyl)but-2-enoic acid (CAS 100994-10-3) is a high-purity analytical reference standard with the molecular formula C11H12O2 and a molecular weight of 176.21 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (E)-3-(o-Tolyl)but-2-enoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 176.21 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.
As a certified reference material (CRM), (E)-3-(o-Tolyl)but-2-enoic 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.) | 1985 |
Recommended Standards
- Tizanidine Impurity 46 (CAS CATO-C4X-144546)
- 4-(2-ethoxyethoxy)butanoic acid (CAS 1016770-83-4)
- 6-hydroxy-1,3-benzothiazole-2-carbonitrile 6-hydroxybenzo[d]thiazole-2-carbonitrile 939-69-5 ACN-049426 (CAS 939-69-5)
- 2-Ethyl-7-methoxybenzofuran (CAS 102234-44-6)
- 2-((Imidazo[2,1-b]thiazol-6-ylmethyl)thio)benzoic acid (CAS 380163-63-3)
- 5-Acetyl-6-nitrobenzodioxole (CAS 56136-84-6)
- Methyl 6-chloro-2-methoxynicotinate (CAS 65515-32-4)
- (1R,2S,4R)-2-Ethyl-4-(3-(trimethylsilyl)propyl)cyclopentanol (CAS 507235-66-7)
- 2,3-Dimethyl-6,7-dihydro-3H-pyrrolo[3,4-d]pyrimidin-4(5H)-one (CAS 1243250-20-5)
- 2-Bromo-6-chloro-1,8-naphthyridine (CAS 1176470-56-6)
- 2-Hydroxy-4-(trifluoromethyl)nicotinaldehyde (CAS 1228898-34-7)
- Alectinib Impurity 86 (CAS CATO-C4X-283686)
- 1-Boc-4-oxo-1-azaspiro[5.5]undecane (CAS 778647-35-1)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com