Description

(2R,4R)-(-)-Pentanediol CAS NO 42075-32-1 is a high-purity chiral diol, a valuable stereoisomer of 2,4-pentanediol. This compound serves as a critical chiral building block and resolving agent in asymmetric synthesis, enabling the production of enantiomerically pure pharmaceuticals and fine chemicals. It is essential for research and manufacturing in the pharmaceutical, agrochemical, and specialty chemical industries where precise stereochemistry is required.

Application

• Chiral Auxiliary/Resolving Agent: Used for the separation of enantiomers and as a chiral ligand or auxiliary in asymmetric synthesis.
• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) requiring specific (2R,4R) stereochemistry.
• Agrochemical Synthesis: Employed in the production of chiral pesticides and herbicides to enhance efficacy and reduce environmental impact.
• Ligand for Catalysis: Used to prepare chiral catalysts for enantioselective hydrogenation and other catalytic transformations.
• Fine Chemical Production: Serves as a precursor for fragrances, flavors, and other high-value specialty chemicals.
• Polymer Modification: Can be used to introduce chirality into polymers for advanced material applications.

Basic Information

Product Name	(2R,4R)-(-)-Pentanediol
CAS No.	42075-32-1
Molecular Formula	C5H12O2
Molecular Weight	104.15 g/mol
Synonyms	(2R,4R)-2,4-Pentanediol; (2R,4R)-Pentane-2,4-diol; (-)-(2R,4R)-2,4-Pentanediol; (R,R)-(-)-2,4-Pentanediol; D-(-)-2,4-Pentanediol; (2R,4R)-1,3-Dimethyl-1,3-propanediol; Chiral Pentanediol
EINECS	Contact for details

Quality Control

Our (2R,4R)-(-)-Pentanediol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC or GC, to ensure compliance with exacting standards. Certificates of Analysis (COA) detailing identity, purity, enantiomeric excess, and specific impurities are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep container tightly sealed when not in use to prevent absorption of moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC/HPLC)	≥ 98.0%
Enantiomeric Excess (ee)	≥ 99.0%
Water Content (KF)	≤ 0.5%

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