Description

S-2-Methylbutanal is a high-purity chiral aldehyde, a key building block in the synthesis of complex organic molecules. Its value lies in its role as a versatile intermediate for creating flavors, fragrances, and active pharmaceutical ingredients (APIs) with specific stereochemistry. This compound is essential for R&D and production in the flavor & fragrance, pharmaceutical, and fine chemical industries, where precise molecular structure is critical for product performance.

Application

• Flavor and Fragrance Synthesis: A crucial chiral intermediate for producing natural-tasting flavors (e.g., fruity, nutty notes) and complex fragrance compounds.
• Pharmaceutical Intermediates: Used in the asymmetric synthesis of chiral drugs and active pharmaceutical ingredients (APIs), where the S-enantiomer provides specific biological activity.
• Agrochemicals: Serves as a building block for the production of certain pesticides and herbicides that require enantiomeric purity for efficacy.
• Fine Chemical Research: A valuable reagent in academic and industrial R&D for developing new synthetic methodologies and chiral catalysts.
• Specialty Polymers: Can be utilized as a monomer or modifier in the synthesis of polymers with specialized properties.

Basic Information

Product Name	S-2-Methylbutanal
CAS No.	1730-97-8
Molecular Formula	C5H10O
Molecular Weight	86.13 g/mol
Synonyms	(S)-2-Methylbutyraldehyde; (S)-2-Methylbutanal; (S)-(-)-2-Methylbutanal; L-2-Methylbutanal; (2S)-2-Methylbutanal; 2-Methylbutyraldehyde (S-enantiomer); Active Valeraldehyde; (S)-2-Methyl-1-butanal
EINECS	217-069-1

Quality Control

Our S-2-Methylbutanal is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity (enantiomeric excess) determination by GC or HPLC, identity confirmation by IR and NMR, and assay for chemical purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to ensure traceability and compliance with your internal standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at 2-8°C (refrigerated) or under inert atmosphere (nitrogen/argon) to minimize oxidation and volatility. Keep away from heat, sparks, and open flame. Due to its highly volatile and easily oxidized nature, containers must be kept tightly sealed and under positive inert gas pressure when not in use.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Enantiomeric Excess (Chiral GC/HPLC)	≥ 99.0% (S)
Refractive Index (n20D)	1.388 - 1.392
Specific Gravity (20°C)	0.800 - 0.820

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.