Cas 309959-88-4,4,5-Bis(diphenylphosphinoyl)-1,2,3-triazole

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Check Digit Verification of cas no

The CAS Registry Mumber 309959-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,9,5 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 309959-88:
(8*3)+(7*0)+(6*9)+(5*9)+(4*5)+(3*9)+(2*8)+(1*8)=194
194 % 10 = 4
So 309959-88-4 is a valid CAS Registry Number.

309959-88-4Upstream product

22428-64-4 Bis(diphenylphosphanyl)acetylene P,P'-dioxide

309959-88-4Downstream Products

309959-88-4Relevant articles and documents

4,5-bis(diphenylphosphinoyl)-1,2,3-triazole: A powerful new ligand that uses two different modes of chelation

Rheingold, Arnold L.,Liable-Sands, Louise M.,Trofimenko, Swiatoslaw

, p. 3321 - 3324 (2007/10/03)

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309959-88-4