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625-35-4

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625-35-4 Usage

Uses

Crotonyl chloride is used in agrochemical, pharmaceutical and dyestuff field. Crotonoyl chloride was used in the synthesis of α,β-unsaturated ester.

Purification Methods

If 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.]

Check Digit Verification of cas no

The CAS Registry Mumber 625-35-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 5 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 625-35:
(5*6)+(4*2)+(3*5)+(2*3)+(1*5)=64
64 % 10 = 4
So 625-35-4 is a valid CAS Registry Number.
InChI:InChI=1/C4H5ClO/c1-2-3-4(5)6/h2-3H,1H3/b3-2+

625-35-4 Well-known Company Product Price

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  • (Code)Product description
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  • Packaging
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  • Alfa Aesar

  • (A13710)  Crotonyl chloride, tech. 90%   

  • 625-35-4

  • 25g

  • 254.0CNY

  • Detail
  • Alfa Aesar

  • (A13710)  Crotonyl chloride, tech. 90%   

  • 625-35-4

  • 100g

  • 478.0CNY

  • Detail
  • Alfa Aesar

  • (A13710)  Crotonyl chloride, tech. 90%   

  • 625-35-4

  • 500g

  • 2021.0CNY

  • Detail
  • Aldrich

  • (127787)  Crotonoylchloride  technical grade, 90%

  • 625-35-4

  • 127787-5G

  • 1,323.27CNY

  • Detail
  • Aldrich

  • (127787)  Crotonoylchloride  technical grade, 90%

  • 625-35-4

  • 127787-100G

  • 3,421.08CNY

  • Detail
  • Aldrich

  • (127787)  Crotonoylchloride  technical grade, 90%

  • 625-35-4

  • 127787-500G

  • 12,671.10CNY

  • Detail

625-35-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name trans-Crotonyl chloride

1.2 Other means of identification

Product number -
Other names (E)-2-Butenoyl chloride

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:625-35-4 SDS

625-35-4Relevant articles and documents

Quorum sensing and nf-κb inhibition of synthetic coumaperine derivatives from piper nigrum

Baruch, Yifat,Gopas, Jacob,Kadosh, Yael,Kumar, Rajendran Saravana,Kushmaro, Ariel,Muthuraman, Subramani,Yaniv, Karin

supporting information, (2021/05/28)

Bacterial communication, termed Quorum Sensing (QS), is a promising target for virulence attenuation and the treatment of bacterial infections. Infections cause inflammation, a process regulated by a number of cellular factors, including the transcription Nuclear Factor kappa B (NF-κB); this factor is found to be upregulated in many inflammatory diseases, including those induced by bacterial infection. In this study, we tested 32 synthetic derivatives of coumaperine (CP), a known natural compound found in pepper (Piper nigrum), for Quorum Sensing Inhibition (QSI) and NF-κB inhibitory activities. Of the compounds tested, seven were found to have high QSI activity, three inhibited bacterial growth and five inhibited NF-κB. In addition, some of the CP compounds were active in more than one test. For example, compounds CP-286, CP-215 and CP-158 were not cytotoxic, inhibited NF-κB activation and QS but did not show antibacterial activity. CP-154 inhibited QS, decreased NF-κB activation and inhibited bacterial growth. Our results indicate that these synthetic molecules may provide a basis for further development of novel therapeutic agents against bacterial infections.

Bromo Radical-Mediated Photoredox Aldehyde Decarbonylation towards Transition-Metal-Free Hydroalkylation of Acrylamides at Room Temperature

Deng, Guo-Jun,Huang, Huawen,Sun, Zhaozhao,Wang, Qiaolin

supporting information, (2021/12/03)

Herein, we report a visible-light-mediated hydroalkylation reaction of alkenes using easily available aldehydes as alkyl sources via bromo radical-promoted photoredox decarbonylation. This protocol provides an alternative entry to C(sp3)?C(sp3) bond formation and features considerable advantages including mild and clean reaction conditions, obviation for transition-metal catalyst, and good functional group compatibility.

PROCESS FOR THE PREPARATION OF PIPERINE

-

Page/Page column 9; 14; 17, (2019/05/02)

The present application relates to a process for the preparation of piperine of high purity having low concentrations of isomeric impurities.

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