Merck, 379093-1G, (S)-(+)-2-Hydroxy-3-methylbutyric acid
Size:1 g, L-α-Hydroxyisovaleric acid, 99%, optical purity ee: 99% (GLC)
Available Catalog Numbers
Catalog Number: 379093-1G
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Category
Pack Size1 g
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| UNSPSC Code | 51113400 |
|---|---|
| NACRES | NA.22 |
| PubChem Substance ID | 24863611 |
| MDL number | MFCD00066443 |
| Beilstein/REAXYS Number | 1721140 |
| InChI | 1S/C5H10O3/c1-3(2)4(6)5(7)8/h3-4,6H,1-2H3,(H,7,8)/t4-/m0/s1 |
| SMILES string | CC(C)[C@H](O)C(O)=O |
| InChI key | NGEWQZIDQIYUNV-BYPYZUCNSA-N |
| assay | 99% |
| form | solid |
| optical activity | [α]20/D +19°, c = 1 in chloroform |
| optical purity | ee: 99% (GLC) |
| bp | 124-125 °C/13 mmHg (lit.) |
| mp | 68-70 °C (lit.) |
| functional group | carboxylic acid |
| Quality Level | 200 |
Answer:It is the (S)-(+)-enantiomer of 2-hydroxy-3-methylbutyric acid. The specified stereochemistry is central to its use as a chiral synthesis building block.
Answer:The reagent has a 99% chemical assay and approximately 99% enantiomeric excess by gas-liquid chromatography. This distinguishes it from a product without a specified configuration.
Answer:Its alpha-hydroxy acid structure introduces a defined chiral unit that can be incorporated into designed molecular structures. Controlling configuration helps avoid unwanted stereoisomers in later synthetic steps.
(S)-(+)-2-Hydroxy-3-methylbutyric acid is the stereochemically defined form of 2-hydroxyisovaleric acid used as a chiral building block in asymmetric organic synthesis and peptide chemistry. The material has the molecular formula C5H10O3 and molecular weight 118.13 g/mol, while its specific stereochemistry is identified by CAS number 17407-55-5. This product is a solid with 99% assay and approximately 99% enantiomeric excess determined by gas-liquid chromatography. A reported positive optical rotation distinguishes the (S) form from its opposite enantiomer and from an unspecified stereochemical grade. The 1 g package is convenient for small-scale route development, synthesis of chiral peptide-related structures, and stereochemical reference work. Maintaining the designated configuration is important when the product participates in reactions where biological activity or chromatographic behavior depends on chirality. Store and handle the reagent under conditions suitable for a small-molecule carboxylic acid and verify batch-specific data when precise optical purity is required.
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