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Methyl crotonate, 98%
Synonyms: Methyl-(2E)-but-2-enoat · (E)-Crotonic acid methyl ester · Methyl E-crotonate · Methyl 2-butenoate
CAS No.623-43-8
FormulaC5H8O2
Mol. weight100.12
Catalogue No.VQ-008897
Purity98%
HSN29163990
Methyl crotonate (CAS 623-43-8) – ester, 98%. C5H8O2, MW 100.12. Order from Vaqora Chemicals with COA and global delivery. High-purity grade with batch COA.
Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About Methyl crotonate, 98%
Listed under CAS 623-43-8, Methyl crotonate is an ester available from Vaqora Chemicals, specified at 98% purity. The compound has the formula C5H8O2, corresponding to a molecular weight of 100.12 g/mol. Systematically, it is named methyl (E)-but-2-enoate. Alternative names: Methyl-(2E)-but-2-enoat and (E)-Crotonic acid methyl ester.
The material typically appears as a colourless liquid. Key physical data: a boiling point of 118-120 °C and a density of 0.944 g/mL at 25 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.
It is commonly used for organic synthesis, catalysis and solvent and extraction work. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.
We offer Methyl crotonate in 25 mL, 100 mL and 500 mL packs with a batch-specific COA, and ship to customers worldwide.
Typical applications
- Organic synthesis
- Catalysis
- Solvent & extraction work
Industries
Specifications & identifiers
| Product name | Methyl crotonate, 98% |
|---|---|
| Catalogue No. | VQ-008897 |
| CAS Number | 623-43-8 |
| IUPAC name | methyl (E)-but-2-enoate |
| Molecular formula | C5H8O2 |
| Molecular weight | 100.12 g/mol |
| Exact mass | 100.0524 |
| Purity / assay | 98% |
| HSN code | 29163990 |
| InChIKey | MCVVUJPXSBQTRZ-ONEGZZNKSA-N |
| SMILES | C/C=C/C(=O)OC |
| PubChem CID | 638132 |
| Physical form | Liquid |
|---|---|
| Appearance | Colourless liquid |
| Boiling point | 118-120 °C |
| Density | 0.944 g/mL at 25 °C |
| LogP (XLogP3) | 0.9 |
| H-bond donors / acceptors | 0 / 2 |
| TPSA | 26.3 Ų |
| Synonyms | Methyl-(2E)-but-2-enoat, (E)-Crotonic acid methyl ester, Methyl E-crotonate, Methyl 2-butenoate, Methyl trans-crotonate, Methyl trans-2-butenoate, Methyl (E)-2-butenoate, trans-2-Butenoic acid methyl ester, 2-Butenoic acid, methyl ester, (2E)-, Crotonic acid, methyl ester, 2-Butenoic acid, methyl ester, (E)-, (E)-2-Butenoic acid methyl ester |
Safety & hazard information (GHS)
Signal word: Danger
Hazard statements
H225Highly flammable liquid and vaporH315Causes skin irritationH318Causes serious eye damageH319Causes serious eye irritationH335May cause respiratory irritation
Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264, P264 + P265, P271, P280, P302 + P352, P303 + P361 + P353, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P317, P319, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P403 + P233
Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.
Documents
Frequently asked questions
What is the CAS number of Methyl crotonate, 98%?
The CAS Registry Number of Methyl crotonate, 98% is 623-43-8. It is also known as Methyl-(2E)-but-2-enoat, (E)-Crotonic acid methyl ester, Methyl E-crotonate.
What is the molecular formula and molecular weight of Methyl crotonate, 98%?
Methyl crotonate, 98% has the molecular formula C5H8O2 and a molecular weight of 100.12 g/mol. Its IUPAC name is methyl (E)-but-2-enoate.
Which grade and pack sizes of Methyl crotonate, 98% can I order?
We supply Methyl crotonate, 98% in (98%) grade, in 25 mL, 100 mL, 500 mL packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with Methyl crotonate, 98%?
Yes. Every lot of Methyl crotonate, 98% 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 Methyl crotonate, 98% be shipped internationally?
Yes. Methyl crotonate, 98% 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.
Enquire about Methyl crotonate, 98%
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