111689-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111689-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,6,8 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111689-71:
(8*1)+(7*1)+(6*1)+(5*6)+(4*8)+(3*9)+(2*7)+(1*1)=125
125 % 10 = 5
So 111689-71-5 is a valid CAS Registry Number.
111689-71-5Relevant articles and documents
Stereoselective total synthesis of (-)-brevisamide
Yadav,Reddy, N. Mallikarjuna,Rahman, Md. Ataur,Prasad,Reddy, B.V. Subba
, p. 8618 - 8625 (2013/09/12)
The stereoselective total synthesis of (-)-brevisamide, a novel marine cyclic ether alkaloid isolated from dinoflagellate karenia brevis is described. The key steps involved in this synthesis are the Sharpless asymmetric epoxidation and regioselective rin
