22972-64-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22972-64-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,9,7 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 22972-64:
(7*2)+(6*2)+(5*9)+(4*7)+(3*2)+(2*6)+(1*4)=121
121 % 10 = 1
So 22972-64-1 is a valid CAS Registry Number.
22972-64-1Relevant articles and documents
Preparation and Reactions of Derivatives of Formyltetrahydrocannabinol
Eiden, Fritz,Gerstlauer, Carmen
, p. 551 - 561 (1982)
The tetrahydrocannabinol (THC) derivatives 3a, 3b and 17 react with Vilsmeier reagent to yield the aldehydes 4a, 4d, 5b, 18 and 19.These condense with CH acids to give the pyrano-THC derivatives 6a, 6b, 6d, 6e, 8, 10 and 20.
