554-21-2 Usage
Common uses
Reagent in organic synthesis
Solvent in various industrial processes
Chemical properties
Highly reactive
Strong oxidizing properties
Applications
Precursor for the synthesis of other chemicals
Used in the production of pharmaceuticals and pesticides
Hazards
Toxic compound
Can cause skin and respiratory irritation
Potential environmental hazards if improperly disposed of
Safety measures
Handle with caution
Follow proper safety protocols and measures when working with this chemical
Please note that the information provided is based on the material given and may not be exhaustive. It is always recommended to consult a reliable source or a professional chemist for more detailed information on the properties and handling of specific chemicals.
Check Digit Verification of cas no
The CAS Registry Mumber 554-21-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,5 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 554-21:
(5*5)+(4*5)+(3*4)+(2*2)+(1*1)=62
62 % 10 = 2
So 554-21-2 is a valid CAS Registry Number.
InChI:InChI=1/C5H2Cl6O3/c6-4(7,8)1-2(12)14-3(13-1)5(9,10)11/h1,3H
554-21-2Relevant articles and documents
Carbonylation of trichloroacetaldehyde (chloral) in concentrated sulfuric acid: Stereocontrolled synthesis of cis- and trans-2,5-bis(trichloromethyl)-1,3-dioxolan-4-one
Mori, Sadayuki,Emura, Kazuhiro,Kano, Motoaki,Kudo, Kiyoshi,Komatsu, Koichi,Sugita, Nobuyuki
, p. 8977 - 8982 (2007/10/02)
Carbonylation of trichloroacetaldehyde(chiral) in concentrated sulfuric acid readily gave 2,5-bis(trichloromethyl-1,3-dioxolan-4-ones (cis and trans) and 3,3,3-trichloro-2-hydroxypropanoic acid. The cis isomer was isolated for the first time, and confirmed by X-ray structural analysis. The cis/trans ratio of dioxolanones largely depended upon the concentration of sulfuric acid. Highly diastereoselective formation of the dioxolanones was achieved with 99wt% sulfuric acid (cis:trans = 95:5) or with 90wt% sulfuric acid (0:100).
