74473-12-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74473-12-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,7 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74473-12:
(7*7)+(6*4)+(5*4)+(4*7)+(3*3)+(2*1)+(1*2)=134
134 % 10 = 4
So 74473-12-4 is a valid CAS Registry Number.
74473-12-4Relevant articles and documents
Zinc chloride induced cycloaddition of allyl chlorides to alkynes: A new cyclopentene synthesis
Miller, Allen,Moore, Michael
, p. 577 - 580 (2007/10/02)
Zinc chloride catalyses both cycloaddition and simple addition of allylic chlorides to alkynes. The former reaction can lead to good yields of 4-chloro-cyclopentenes, and constitutes a new cyclopentene synthesis.
