(E)-4-Hydroxy-2-methylbut-2-enoic acid CAS 28127-66-4
| CAS No. | 28127-66-4 |
| Molecular Formula | C5H8O3 |
| Molecular Weight | 116.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (E)-4-Hydroxy-2-methylbut-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.
CATO supplies (E)-4-Hydroxy-2-methylbut-2-enoic acid (CAS 28127-66-4), a certified reference material (molecular formula C5H8O3, MW 116.12 g/mol) for analytical method development and quality control.
The molecular framework of (E)-4-Hydroxy-2-methylbut-2-enoic acid (C5H8O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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 | C5H8O3 |
| Molecular Weight | 116.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1965 |
Related E Standards
- 3-Hydroxy-3-methyldihydrofuran-2(3H)-one (CAS 1192-42-3)
- 2-Hydroxy-3-methyl-3-buten-1-oicacid (CAS 150282-01-2)
- 2-hydroxy-1H-imidazole-5-carbaldehyde (CAS 72864-28-9)
- 4-Hydroxy-2-methylenebutanoic acid (CAS 24923-76-0)
- 4-Hydroxy-4-methyldihydrofuran-2(3H)-one (CAS 34945-05-6)
- 5-Hydroxy-4-methyldihydrofuran-2(3H)-one (CAS 61892-47-5)
- METHYL 3-HYDROXY-2-METHYLACRYLATE (CAS 62350-83-8)
- 3-Hydroxy-acrylic Acid Ethyl Ester (Mixture) (CAS 89579-67-9)
Recommended Standards
- (5,6-Dihydro-1,4-dioxin-2-yl)methanol (CAS 94105-19-8)
- (E)-Methyl 4-hydroxybut-2-enoate (CAS 29576-13-4)
- (4S)-4-Ethyl-1,3-dioxolan-2-one (CAS 90970-72-2)
- (R)-1,4-Dioxane-2-carbaldehyde (CAS 934346-74-4)
- [4-methoxy-4-(trifluoromethyl)cyclohexyl]methanol (CAS 1637310-71-4)
- 3-(4-Carbamoylphenyl)acrylic acid (CAS 1826044-72-7)
- 1-[4-(Trifluoromethyl)phenyl]pyrazole-4-carboxylic Acid (CAS 1260740-53-1)
- DL-Myoinositol-1-phosphate (CAS 573-35-3)
- (4S,4'S)-2,2'-(2-(Primethylstannyl)-1,3-phenylene)bis(4-methyl-4,5-dihydrooxazole) (CAS 342424-48-0)
- Methyl 3-(2,4-dimethylphenyl)-3-oxopropanoate (CAS 1225915-16-1)
- Tryptophan impurity 31 (CAS 2591-98-2)
- (E)-3-(1-((2,4-dimethoxyphenyl)amino)ethylidene)dihydrofuran-2(3H)-one (CAS 200932-30-5)
- Ethyl 3-Amino-5-(4-nitrophenyl)thiophene-2-carboxylate (CAS 910077-00-8)
- Neuropeptide Y, human (CAS 98264-90-5)
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