137089-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137089-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,8 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137089-99:
(8*1)+(7*3)+(6*7)+(5*0)+(4*8)+(3*9)+(2*9)+(1*9)=157
157 % 10 = 7
So 137089-99-7 is a valid CAS Registry Number.
137089-99-7Relevant academic research and scientific papers
Synthesis and reactions of N-phenyl-bis(diethyl-phosphonate)ketenimine
Bestmann,Lehnen
, p. 4279 - 4282 (2007/10/02)
N-Phenyl-bis(diethylphosphonato)-ketenimine (8) has been prepared. Compound 8 undergoes several addition reactions, especially it is suitable for the synthesis of polycyclic products by subsequent Michael additions followed by intramolecular Horner reaction.
