1240497-07-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240497-07-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,4,9 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1240497-07:
(9*1)+(8*2)+(7*4)+(6*0)+(5*4)+(4*9)+(3*7)+(2*0)+(1*7)=137
137 % 10 = 7
So 1240497-07-7 is a valid CAS Registry Number.
1240497-07-7Relevant articles and documents
Friedel-Crafts catalysts as assistants in the tritylation of less reactive hydroxyls
Bernini, Roberta,Maltese, Maurizio
, p. 4113 - 4116 (2010)
Less reactive hydroxyls, such as those present in secondary alcohols and in some primary alcohols, phenols and carboxylic acids, were easily tritylated with the homogeneous assistance of equimolar quantities of chlorides of di- and trivalent metals in apr
