132630-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 132630-19-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,6,3 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 132630-19:
(8*1)+(7*3)+(6*2)+(5*6)+(4*3)+(3*0)+(2*1)+(1*9)=94
94 % 10 = 4
So 132630-19-4 is a valid CAS Registry Number.
132630-19-4Relevant articles and documents
Highly periselective [2,3]Wittig rearrangements on dihydrofuran and dihydropyran rings
Tomooka, Katsuhiko,Watanabe, Masashi,Nakai, Takeshi
, p. 7353 - 7354 (2007/10/02)
The carbanion 3,5-arrangements involving the dihydrofuran and dihydropyran rings as migrating groups are shown to afford exclusively the [2,3]Wittig products with a remarkably high periselectivity and stereoselectivity.