56522-66-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56522-66-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,2 and 2 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 56522-66:
(7*5)+(6*6)+(5*5)+(4*2)+(3*2)+(2*6)+(1*6)=128
128 % 10 = 8
So 56522-66-8 is a valid CAS Registry Number.
56522-66-8Relevant articles and documents
Preparation of citral
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, (2008/06/13)
Citral (I) STR1 is prepared by heating an acetal (IIa) or (IIb) STR2 in the presence of an acid catalyst while continuously distilling from the reaction mixture the 3-methylbut-2-en-1-ol (III, prenol) eliminated during the reaction.