343858-72-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 343858-72-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,8,5 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 343858-72:
(8*3)+(7*4)+(6*3)+(5*8)+(4*5)+(3*8)+(2*7)+(1*2)=170
170 % 10 = 0
So 343858-72-0 is a valid CAS Registry Number.
343858-72-0Relevant academic research and scientific papers
Synthesis of Symmetrically Substituted Bicyclic Guanidines
Schmidtchen, Franz P.
, p. 2175 - 2182 (2007/10/02)
The symmetrically 2,2,8,8-tetraalkylsubstituted bicyclic guanidines 14a and b are prepared stereoselectively via construction of the open-chain triamines 11a and b and subsequent cyclisation.A one-pot reaction gives the unsubstituted guanidine 14c in high