177018-41-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177018-41-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,0,1 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177018-41:
(8*1)+(7*7)+(6*7)+(5*0)+(4*1)+(3*8)+(2*4)+(1*1)=136
136 % 10 = 6
So 177018-41-6 is a valid CAS Registry Number.
177018-41-6Relevant articles and documents
A Separation Procedure for the Preparation of Enantiomerically Pure Midodrine
Noe,Knollmüller,G?rtner
, p. 159 - 165 (2007/10/03)
Racemic midodrine chlorohydrate (rac-1) was N-protected to yield the racemic products rac-2a-c. These were converted into the diastereomeric O-acetals 3a-c/4a-c, which can easily be separated by chromatography. After removal of the N- and O-protective gro