56881-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56881-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,8 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 56881-91:
(7*5)+(6*6)+(5*8)+(4*8)+(3*1)+(2*9)+(1*1)=165
165 % 10 = 5
So 56881-91-5 is a valid CAS Registry Number.
56881-91-5Relevant articles and documents
Preparation of isopropylidene acetals from butane-1,2,4-triol and its cyclopropane congeners
Prokhorevich, Konstantin N.,Bekish, Andrei V.
, p. 4073 - 4075 (2010)
Features of isopropylidene acetal synthesis from butane-1,2,4-triol and its cyclopropane congeners were studied. Procedures for the preparation and purification of the respective acetonides have been developed.
