84109-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84109-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,1,0 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84109-81:
(7*8)+(6*4)+(5*1)+(4*0)+(3*9)+(2*8)+(1*1)=129
129 % 10 = 9
So 84109-81-9 is a valid CAS Registry Number.
84109-81-9Relevant articles and documents
STRAIN AND SELECTIVITY: PARTNERS FOR ORGANIC SYNTHESIS
Trost, Barry M.
, p. 139 - 150 (2007/10/02)
The development of two new small-ring conjunctive reagents, (E)-2-(hydrohymethyl)cyclopropyl phenyl sulphide and 1,1-bis(benzenesulphonyl)cyclopropane, are reported.The former permits a synthesis of 2,4-disubstituted cyclobutanones and (E)-4-phenylthio-4-