217636-02-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217636-02-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,6,3 and 6 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 217636-02:
(8*2)+(7*1)+(6*7)+(5*6)+(4*3)+(3*6)+(2*0)+(1*2)=127
127 % 10 = 7
So 217636-02-7 is a valid CAS Registry Number.
217636-02-7Relevant articles and documents
Enantiospecific total synthesis of (-)-D-noviose
Pankau, Wolf Matthias,Kreiser, Wolfgang
, p. 1997 - 2004 (1998)
(-)-D-Noviose ((-)-22), a rare sugar, was synthesized starting from the optically active building block (-)-1 in seven steps. The first step of this route, the introduction of a methyl-ether group under Lewis-acidic conditions, left the acetoxy group unto
