507475-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 507475-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,7,4,7 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 507475-91:
(8*5)+(7*0)+(6*7)+(5*4)+(4*7)+(3*5)+(2*9)+(1*1)=164
164 % 10 = 4
So 507475-91-4 is a valid CAS Registry Number.
507475-91-4Relevant articles and documents
A selective one-step synthesis of tris N-alkylated cyclens
Li, Cong,Wong, Wing-Tak
, p. 5595 - 5601 (2004)
A general one-step synthesis for tris N-alkylated cyclens with good yield and unprecedented selectivity is presented. Tris and 1,4-bis N-alkylated cyclens, as the only two major products are isolated. Furthermore, according to the single crystal X-ray str
