Calcium 3-Hydroxy-3-methylbutyrate

Name: Calcium 3-Hydroxy-3-methylbutyrate
Brand: Vaqora Chemicals
SKU: VQ-051940

About Calcium 3-Hydroxy-3-methylbutyrate

Listed under CAS 135236-72-5, Calcium 3-Hydroxy-3-methylbutyrate is a metabolite / degradant standard available from Vaqora Chemicals. Formula C10H18CaO6, molecular weight 274.32 g/mol. The IUPAC name is calcium bis(3-hydroxy-3-methylbutanoate). Common synonyms include calcium beta-hydroxy-beta-methylbutyrate and CA-HMB.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Analytical teams use this compound to identify metabolites and degradants, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Calcium 3-Hydroxy-3-methylbutyrate in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Specifications & identifiers

Chemical identifiers
Product name	Calcium 3-Hydroxy-3-methylbutyrate
Catalogue No.	VQ-051940
CAS Number	135236-72-5
IUPAC name	calcium bis(3-hydroxy-3-methylbutanoate)
Molecular formula	C₁₀H₁₈CaO₆
Molecular weight	274.32 g/mol
Exact mass	274.0729
Grade	Reference Standard
HSN code	38229090
InChIKey	WLJUMPWVUPNXMF-UHFFFAOYSA-L
SMILES	CC(C)(CC(=O)[O-])O.CC(C)(CC(=O)[O-])O.[Ca+2]
PubChem CID	9860341

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 6
TPSA	121 Å²
Synonyms	calcium beta-hydroxy-beta-methylbutyrate, Butanoic acid, 3-hydroxy-3-methyl-, calcium salt (2:1), CA-HMB, calcium hydroxymethylbutyrate, calcium beta-hydroxy beta-methylbutyrate, calcium 3-hydroxy-3-methylbutanoate, CalciuM 3-Hydroxy-3-Methylbutyrate Hydrate, Calcium b-hydroxy-b-methylbutyrate, Calcium beta-hydroxy-beta-methylbutyric acid, 3-Hydroxy-3-methylbutanoic acid calcium salt (2:1), calcium 3-hydroxy-3-methylbutano

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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 Calcium 3-Hydroxy-3-methylbutyrate?

The CAS Registry Number of Calcium 3-Hydroxy-3-methylbutyrate is 135236-72-5. It is also known as calcium beta-hydroxy-beta-methylbutyrate, Butanoic acid, 3-hydroxy-3-methyl-, calcium salt (2:1), CA-HMB.

What is the molecular formula and molecular weight of Calcium 3-Hydroxy-3-methylbutyrate?

Calcium 3-Hydroxy-3-methylbutyrate has the molecular formula C10H18CaO6 and a molecular weight of 274.32 g/mol. Its IUPAC name is calcium bis(3-hydroxy-3-methylbutanoate).

Which grade and pack sizes of Calcium 3-Hydroxy-3-methylbutyrate can I order?

We supply Calcium 3-Hydroxy-3-methylbutyrate 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 Calcium 3-Hydroxy-3-methylbutyrate?

Yes. Every lot of Calcium 3-Hydroxy-3-methylbutyrate 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 Calcium 3-Hydroxy-3-methylbutyrate be shipped internationally?

Yes. Calcium 3-Hydroxy-3-methylbutyrate 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.