173917-48-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173917-48-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,9,1 and 7 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 173917-48:
(8*1)+(7*7)+(6*3)+(5*9)+(4*1)+(3*7)+(2*4)+(1*8)=161
161 % 10 = 1
So 173917-48-1 is a valid CAS Registry Number.
173917-48-1Relevant articles and documents
Convenient synthesis of monoprotected 1,2-diols
Poppe,Recseg,Novak
, p. 3993 - 4000 (1995)
Reaction of the protected glycidol derivatives (1A-C) with a wide variety of Grignard reagents (2a-h) in the presence of catalytic amount of CuCN provided the corresponding monoprotected diol derivatives (3) in a highly regioselective manner.