1161258-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1161258-91-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,1,2,5 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1161258-91:
(9*1)+(8*1)+(7*6)+(6*1)+(5*2)+(4*5)+(3*8)+(2*9)+(1*1)=138
138 % 10 = 8
So 1161258-91-8 is a valid CAS Registry Number.
1161258-91-8Relevant articles and documents
Total synthesis of (+)-angelmarin
Magolan, Jakob,Coster, Mark J.
supporting information; experimental part, p. 5083 - 5086 (2009/10/17)
(Chemical Equation Presented) An efficient 8-step enantioselective total synthesis of (+)-angelmarin, starting from commercially available umbelliferone, has been achieved. Key reactions include olefin cross-metathesis and a Shi epoxidation-cyclization sequence.
