3-Methyl-2-butenoic acid, 97%

Name: 3-Methyl-2-butenoic acid, 97%
Brand: Vaqora Chemicals
SKU: VQ-008305

About 3-Methyl-2-butenoic acid, 97%

3-Methyl-2-butenoic acid is a carboxylic acid in Synthesis grade carrying the CAS registry number 541-47-9 with a typical assay of 97%. The compound has the formula C5H8O2, corresponding to a molecular weight of 100.12 g/mol. The IUPAC name is 3-methylbut-2-enoic acid. Common synonyms include 3-Methylcrotonic acid and Senecioic acid.

The material typically appears as white to orange to green powder and chunks. Literature values give a melting point of 65-70 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 25 g, 100 g, 500 g and 5 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	3-Methyl-2-butenoic acid, 97%
Catalogue No.	VQ-008305
CAS Number	541-47-9
IUPAC name	3-methylbut-2-enoic acid
Molecular formula	C₅H₈O₂
Molecular weight	100.12 g/mol
Exact mass	100.0524
Grade	Synthesis
Purity / assay	97%
HSN code	29161990
InChIKey	YYPNJNDODFVZLE-UHFFFAOYSA-N
SMILES	CC(=CC(=O)O)C
PubChem CID	10931

Physical properties
Physical form	Powder
Appearance	White to orange to green powder and chunks
Melting point	65-70 °C
LogP (XLogP3)	1.2
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²
Synonyms	3-Methylcrotonic acid, Senecioic acid, 3,3-Dimethylacrylic acid, 2-Butenoic acid, 3-methyl-, beta,beta-Dimethylacrylic acid, beta,beta-Dimethacrylic acid, beta-Methylcrotonic acid, Crotonic acid, 3-methyl-, 3-methyl crotonic acid, beta,beta-dimethyl acrylic acid, 3-methyl-but-2-enoic acid, Kyselina 3-methyl-2-butenova

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P332 + P317, P362 + P364, P363, 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

Other grades of CAS 541-47-9

Synthesis

3,3-Dimethylacrylic acid, 97%

CAS: 541-47-9
Formula: C₅H₈O₂
MW: 100.12 g/mol

VQ-008266

Frequently asked questions

What is the CAS number of 3-Methyl-2-butenoic acid, 97%?

The CAS Registry Number of 3-Methyl-2-butenoic acid, 97% is 541-47-9. It is also known as 3-Methylcrotonic acid, Senecioic acid, 3,3-Dimethylacrylic acid.

What is the molecular formula and molecular weight of 3-Methyl-2-butenoic acid, 97%?

3-Methyl-2-butenoic acid, 97% has the molecular formula C5H8O2 and a molecular weight of 100.12 g/mol. Its IUPAC name is 3-methylbut-2-enoic acid.

Which grade and pack sizes of 3-Methyl-2-butenoic acid, 97% can I order?

We supply 3-Methyl-2-butenoic acid, 97% in Synthesis (97%) grade, in 25 g, 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 3-Methyl-2-butenoic acid, 97%?

Yes. Every lot of 3-Methyl-2-butenoic acid, 97% 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 3-Methyl-2-butenoic acid, 97% be shipped internationally?

Yes. 3-Methyl-2-butenoic acid, 97% 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.