76569-42-1 Usage
General Description
2,2,2-trichloro-1-(2,4-dihydroxy-phenyl)-ethanone is a chemical compound with the molecular formula C8H6Cl3O3. It is commonly referred to as TCA and is used in the production of pharmaceuticals and dyes. TCA is a highly reactive compound due to the presence of the trichloromethyl group, making it suitable for a wide range of chemical reactions. It is also used as an intermediate in the synthesis of other organic compounds. TCA is a strong irritant to the skin, eyes, and respiratory system and should be handled with caution in a well-ventilated area with appropriate personal protective equipment.
Check Digit Verification of cas no
The CAS Registry Mumber 76569-42-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,5,6 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 76569-42:
(7*7)+(6*6)+(5*5)+(4*6)+(3*9)+(2*4)+(1*2)=171
171 % 10 = 1
So 76569-42-1 is a valid CAS Registry Number.
76569-42-1Relevant articles and documents
The Chemistry of Nitrilium Salts. Part 1. Acylation of Phenols and Phenol Ethers with Nitriles and Trifluoromethanesulphonic Acid
Booth, Brian L.,Noori, Ghazi F.M.
, p. 2894 - 2900 (2007/10/02)
Aliphatic nitriles, RCN (R = Me, n-Pr, CH2Cl, and CCl3), in the presence of trifluoromethanesulphonic acid have been found to react with a number of mono-, di-, and tri-substituted phenols and phenol ethers at room temperature to give ketones after hydrolysis of the reaction mixture.Moderate to good yields of acylation products are obtained in the majority of these reactions.The yield with malononitrile and succinonitrile, which are only slightly soluble in the reaction medium, are generally poor, and reaction involves only one of the available nitrile groups.Attempts to use diethyl ether and dichloromethane as solvents for some of these reactions were unsuccessful, but limited success was achieved with nitromethane.
