(E)-2-Butenoyl chloride

(E)-2-Butenoyl chloride
  • CAS No.:625-35-4
Other grades of this product :
(E)-2-Butenoyl chloride Basic information
Product Name:(E)-2-Butenoyl chloride
Synonyms:TRANS-CROTONYL CHLORIDE;Crotonyl chloride, 90+%, remainder mainly cis-isomer;2-Butenoyl chloride, (E)-;Crotonoyl chloride (E)-;Einecs 210-889-9;(E)-2-Butenoyl chlor;Crotonyl Chloride, ReMainder Mainly Cis-IsoMer;CrotonoyL
CAS:625-35-4
MF:C4H5ClO
MW:104.53
EINECS:234-010-3
Product Categories:Acid Halides;Building Blocks;Acid Halides;Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks;Carbonyl Compounds;Organic Building Blocks
Mol File:625-35-4.mol
(E)-2-Butenoyl chloride Chemical Properties
Melting point 72-74 °C
Boiling point 120-123 °C(lit.)
density 1.091 g/mL at 25 °C(lit.)
refractive index n20/D 1.459(lit.)
Fp 95 °F
storage temp. 2-8°C
form Liquid
color Clear colorless to brown
Water Solubility Reacts with water.
Sensitive Moisture Sensitive
BRN 506118
InChIKeyRJUIDDKTATZJFE-NSCUHMNNSA-N
CAS DataBase Reference625-35-4(CAS DataBase Reference)
NIST Chemistry Reference2-Butenoyl chloride, (E)-(625-35-4)
Safety Information
Hazard Codes C
Risk Statements 10-34-36/37-37
Safety Statements 16-26-27-36/37/39-45-28A-24/25
RIDADR UN 2920 8/PG 2
WGK Germany 3
13-19-21
TSCA Yes
HazardClass 8
PackingGroup II
HS Code 29161900
MSDS Information
ProviderLanguage
(E)-2-Butenoyl chloride English
ACROS English
SigmaAldrich English
ALFA English
(E)-2-Butenoyl chloride Usage And Synthesis
Chemical Propertiesclear colourless to brown liquid
UsesCrotonyl chloride is used in agrochemical, pharmaceutical and dyestuff field. Crotonoyl chloride was used in the synthesis of α,β-unsaturated ester.
Purification MethodsIf the IR of a film has no OH bands, then fractionally distil it, taking the middle fraction and redistilling it. If OH bands are present, then add excess of oxalyl chloride, reflux for 3hours, then distil off the reagent and fractionally distil the crotonoyl chloride as before. Stabilise the distillate with 160ppm of hydroquinone. The amide forms needles m 158o from aqueous ammonia, and the anilide also forms needles but with m 115-118o from H2O. [Beilstein 2 H 411, 2 I 188, 2 II 392, 2 III 1265, 2 IV 1506.]
(E)-2-Butenoyl chloride Preparation Products And Raw materials

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