128525-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128525-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,2 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128525-57:
(8*1)+(7*2)+(6*8)+(5*5)+(4*2)+(3*5)+(2*5)+(1*7)=135
135 % 10 = 5
So 128525-57-5 is a valid CAS Registry Number.
128525-57-5Relevant articles and documents
Synthesis of the enantiomeric 1,4,5,6-tetra-O-benzyl-myo inositols
Bruzik, Karol S.,Salamonczyk, Grzegorz M.
, p. 67 - 73 (1989)
The synthesis of the optically pure 1,4,5,6-tetra-O-benzyl-myo-inositols was achieved in four steps via diastereomeric 2,3-spiro-acetals of myo-inositol with l- and d-camphor as the key intermediates. Camphor dimethyl acetal was used for the acetalation r