(R)-2-Phenylbutyric Acid

Name: (R)-2-Phenylbutyric Acid
Brand: Vaqora Chemicals
SKU: VQ-029566

About (R)-2-Phenylbutyric Acid

(R)-2-Phenylbutyric Acid is an impurity of Butamirate carrying the CAS registry number 938-79-4. The compound has the formula C10H12O2, corresponding to a molecular weight of 164.2 g/mol. Its systematic (IUPAC) name is (2R)-2-phenylbutanoic acid. It is also known as 2-Phenylbutyric acid, (R)- or Benzeneacetic acid, alpha-ethyl-, (R)-.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Pharmaceutical QC and development laboratories use this impurity standard of Butamirate to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, (R)-2-Phenylbutyric Acid is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Butamirate

View every impurity, metabolite and intermediate we list for Butamirate.

Butamirate impurities

Specifications & identifiers

Chemical identifiers
Product name	(R)-2-Phenylbutyric Acid
Catalogue No.	VQ-029566
CAS Number	938-79-4
IUPAC name	(2R)-2-phenylbutanoic acid
Molecular formula	C₁₀H₁₂O₂
Molecular weight	164.2 g/mol
Exact mass	164.0837
Grade	Reference Standard
HSN code	38229090
InChIKey	OFJWFSNDPCAWDK-SECBINFHSA-N
SMILES	CC[C@H](C1=CC=CC=C1)C(=O)O
PubChem CID	785330

Physical properties
Physical form	Solid
LogP (XLogP3)	2.3
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²
Synonyms	2-Phenylbutyric acid, (R)-, Benzeneacetic acid, alpha-ethyl-, (R)-, (R)-(-)-2-Phenylbutanoic acid, Butyric acid, 2-phenyl-, (R)-(-)-, Benzeneacetic acid, alpha-ethyl-, (alphaR)-, (-)-2-phenylbutyric acid, (r)-2-phenylbutanoic acid, (RS)-2-phenylbutyric acid, (r)-2-phenylbutanoicacid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P270, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P321, P330, P332 + P317, P337 + P317, P362 + P364, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of (R)-2-Phenylbutyric Acid?

The CAS Registry Number of (R)-2-Phenylbutyric Acid is 938-79-4. It is also known as 2-Phenylbutyric acid, (R)-, Benzeneacetic acid, alpha-ethyl-, (R)-, (R)-(-)-2-Phenylbutanoic acid.

What is the molecular formula and molecular weight of (R)-2-Phenylbutyric Acid?

(R)-2-Phenylbutyric Acid has the molecular formula C10H12O2 and a molecular weight of 164.2 g/mol. Its IUPAC name is (2R)-2-phenylbutanoic acid.

What is (R)-2-Phenylbutyric Acid used for?

(R)-2-Phenylbutyric Acid is supplied as a characterised reference material related to Butamirate. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of (R)-2-Phenylbutyric Acid can I order?

We supply (R)-2-Phenylbutyric Acid in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with (R)-2-Phenylbutyric Acid?

Yes. Every lot of (R)-2-Phenylbutyric Acid is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can (R)-2-Phenylbutyric Acid be shipped internationally?

Yes. (R)-2-Phenylbutyric Acid is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.