263722-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263722-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,7,2 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 263722-70:
(8*2)+(7*6)+(6*3)+(5*7)+(4*2)+(3*2)+(2*7)+(1*0)=139
139 % 10 = 9
So 263722-70-9 is a valid CAS Registry Number.
263722-70-9Relevant articles and documents
Diastereoselective Baylis-Hillman reactions: The design and synthesis of a novel camphor-Based chiral auxiliary
Yang, Kung-Shuo,Chen, Kwunmin
, p. 729 - 731 (2000)
Formula presented Reaction of chiral acryloylhydrazide 5 derived from novel auxiliary 4 with aldehydes in the presence of DABCO affords practical levels (up to 98percent de) of β-hydroxy-α-methylene carbonyl derivatives, and high optical purity of both di
