CAS 625-35-4

trans-Crotonyl chloride

Description:

Trans-Crotonyl chloride, with the CAS number 625-35-4, is an organic compound characterized by its unsaturated carbon chain and the presence of a reactive acyl chloride functional group. It is a colorless to pale yellow liquid that is typically used as an intermediate in organic synthesis, particularly in the production of various chemical compounds, including pharmaceuticals and agrochemicals. The molecule features a trans configuration around the double bond, which influences its reactivity and physical properties. Trans-Crotonyl chloride is known for its ability to undergo nucleophilic substitution reactions, making it a valuable reagent in synthetic organic chemistry. It is also sensitive to moisture and can hydrolyze in the presence of water, releasing hydrochloric acid. Proper handling and storage are essential due to its corrosive nature and potential health hazards, including irritation to the skin, eyes, and respiratory system. As with many acyl chlorides, it should be used in a well-ventilated area with appropriate personal protective equipment.

Formula: C₄H₅ClO

InChI: InChI=1S/C4H5ClO/c1-2-3-4(5)6/h2-3H,1H3/b3-2+

InChI key: InChIKey=RJUIDDKTATZJFE-NSCUHMNNSA-N

SMILES: C(\C(Cl)=O)=C/C

Synonyms:

• (2E)-2-Butenoyl chloride
• (2E)-but-2-enoyl chloride
• (E)-2-Butenoyl chloride
• (E)-But-2-enoyl chloride
• (E)-Crotonic acid chloride
• (E)-Crotonoyl chloride
• (E)-Crotonyl chloride
• 2-Butenoyl chloride, (E)-
• 2-Butenoyl chloride,(2E)-
• Crotonoyl chloride, (E)-
• trans-2-Butenoyl chloride

Crotonyl chloride, tech. 90%

CAS: 625-35-4

Crotonyl chloride is used in agrochemical, pharmaceutical and dyestuff field. Crotonoyl chloride was used in the synthesis of ,-unsaturated ester. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refe

Formula: C₄H₅ClO

Purity: 90%

Color and Shape: Clear colorless to yellow, Liquid

Molecular weight: 104.53

Ref: 02-A13710

(E)-2-Butenoyl chloride

CAS: 625-35-4

Formula: C₄H₅ClO

Purity: 96%

Color and Shape: Liquid

Molecular weight: 104.5349

Ref: IN-DA0034TB

Crotonoyl Chloride

Controlled Product

CAS: 625-35-4

Applications Crotonoyl chloride is an unsaturated acid chloride that is used as an acylation agent in synthetic chemistry. Crotonoyl chloride is also used as a reagent in the synthesis of (-)-Exiguolide, a 16-membered macrolide that is used as a fertilization inhibitor.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Arumugam, V., et al.: Tetrahedron Lett., 38, 6473 (1997); Han, X., et al.: Eur. J. Org. Chem., 2013 (1193 (2013); Rathke, M. & Sullivan, D.: Tetrahedron Lett., 14, 1297 (1973)

Formula: C₄H₅ClO

Color and Shape: Neat

Molecular weight: 104.53

Ref: TR-C818810