Stock Locations

New Jersey, USA
Czech Republic, EU
Mumbai, India

* Stock subject to availability.

Documentation

Download MSDS

Download Sample COA

Includes: HPLC, MASS/LC-MS, 1H NMR, FT-IR, Potency, Structure Elucidation Report (SER), and additional analytical data depending on the product.

62391-99-5Valproic Acid Related Compound B

● In Stock

Catalogue No.:	VE006290
CAS No.:	62391-99-5
Mol. Formula:	C8H16O2
Mol. Weight:	144.21 g/mol

Request a quote

Add to RFQ list

Additional information on CAS 62391-99-5

Parent drug

Valproic Acid

IUPAC Name

(2RS)-2-(1-methylethyl)pentanoic acid

Pharmacopeial Synonyms

Valproic Acid EP Impurity C

Synonyms

2-Isopropylpentanoic acid; 2-(1-Methylethyl)pentanoic acid; rac 2-Isopropyl Pentanoic Acid

Smiles

CCCC(C(C)C)C(O)=O

InChI

InChI=1S/C8H16O2/c1-4-5-7(6(2)3)8(9)10/h6-7H,4-5H2,1-3H3,(H,9,10)

Shipping Condition

Ambient Temperature

Description

Valproic Acid EP Impurity C, also designated Valproic Acid Related Compound B and rac 2-Isopropylpentanoic acid, is the racemic carboxylic acid isomer of valproic acid, CAS 62391-99-5, formula C8H16O2, molecular weight 144.21 g/mol. It is typically associated with process-related isomeric carryover or side-formation during branched-chain alkyl acid synthesis rather than oxidative degradation. Because structural isomerism can confound peak assignment, determination often relies on orthogonal chromatography with GC-MS, LC-MS/MS, and chiral or high-resolution separations. In pharmacopeial and regulatory contexts, its presence is evaluated as a related substance reflecting synthetic route specificity and impurity profile consistency.