91880-70-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91880-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,8 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91880-70:
(7*9)+(6*1)+(5*8)+(4*8)+(3*0)+(2*7)+(1*0)=155
155 % 10 = 5
So 91880-70-5 is a valid CAS Registry Number.
91880-70-5Relevant articles and documents
Thioaldehyde Diels-Alder Reactions
Vedejs, E.,Eberlein, T. H.,Mazur, D. J.,McClure, C. K.,Perry, D. A.,et al.
, p. 1556 - 1562 (2007/10/02)
Thioaldehydes containing virtually any α-substitutent can be generated by photofragmentation of phenacyl sulfides.Donor-substituted derivatives are reactive toward electron-rich dienes and give 2 + 4 cycloadducts with regiochemistry corresponding to advan