122131-12-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 122131-12-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,1,3 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 122131-12:
(8*1)+(7*2)+(6*2)+(5*1)+(4*3)+(3*1)+(2*1)+(1*2)=58
58 % 10 = 8
So 122131-12-8 is a valid CAS Registry Number.
122131-12-8Relevant articles and documents
MARINE TOXINS. SYNTHESIS OF THE SPIRO-BENZOQUINONEFURAN UNIT IN STYPOLDIONE
Fish, Paul V.,Pattenden, Gerald
, p. 3857 - 3860 (1988)
A synthesis of the unusual spiro-benzoquinonefuran unit (13) present in the marine toxin stypoldione (1), using the strategy (9)-(10)-(12)-(13), is described.
