920015-39-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 920015-39-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,0,0,1 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 920015-39:
(8*9)+(7*2)+(6*0)+(5*0)+(4*1)+(3*5)+(2*3)+(1*9)=120
120 % 10 = 0
So 920015-39-0 is a valid CAS Registry Number.
920015-39-0Relevant articles and documents
Facile synthesis of a d-galactono-1,6-lactone derivative, a precursor of a copolyester
Romero Zaliz, C. Lorena,Varela, Oscar
, p. 2973 - 2977 (2006)
2,3,4,6-Tetra-O-methyl-d-galactonic acid (5) was readily prepared from d-galactono-1,4-lactone (1) in 47% yield. The sequence involves tritylation of HO-6 of 1, followed by O-permethylation and deprotection. Lactonization of 5 led to the per-O-methyl-d-ga