98829-32-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98829-32-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,8,2 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 98829-32:
(7*9)+(6*8)+(5*8)+(4*2)+(3*9)+(2*3)+(1*2)=194
194 % 10 = 4
So 98829-32-4 is a valid CAS Registry Number.
98829-32-4Relevant articles and documents
Regioselectiv O-alkylation of ascorbic acid for the of efficient synthesis if antioxidants
Beifuss, Uwe
, p. 147 - 149 (2007/10/03)
The first chemo- and regioselective alkylation of ascorbic acid without protection of the hydroxyl groups at C-5 and C-6 exclusively yields the corresponding 3-O-ethers which can be used to synthesize the 2,3-O,O-diethers as well as the 2-0-alkyl ethers o
