136528-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136528-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,2 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136528-89:
(8*1)+(7*3)+(6*6)+(5*5)+(4*2)+(3*8)+(2*8)+(1*9)=147
147 % 10 = 7
So 136528-89-7 is a valid CAS Registry Number.
136528-89-7Relevant articles and documents
Phosphonium salts
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, (2008/06/13)
The invention is a novel phosphonium salt, useful as an initiator or catalyst in the reaction of oxirane groups in an epoxy resin with aromatic carbonate and/or ester linkages in monomeric, oligomeric, or polymeric carbonates, esters, or estercarbonates.