21066-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21066-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,6 and 6 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21066-15:
(7*2)+(6*1)+(5*0)+(4*6)+(3*6)+(2*1)+(1*5)=69
69 % 10 = 9
So 21066-15-9 is a valid CAS Registry Number.
21066-15-9Relevant articles and documents
PURIFICATION PROCESS FOR CHENODEOXYCHOLIC ACID
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Page/Page column 14, (2008/06/13)
The present invention relates to a process for purifying chenodeoxycholic acid (3α,7α-dihydroxy-5β-cholic acid). In particular, the present invention relates to a process for purifying chenodeoxycholic acid from low grade of chenodeoxycholic acid mixture in swine bile solid, with high yield and purity.