1807-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1807-12-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,0 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1807-12:
(6*1)+(5*8)+(4*0)+(3*7)+(2*1)+(1*2)=71
71 % 10 = 1
So 1807-12-1 is a valid CAS Registry Number.
1807-12-1Relevant academic research and scientific papers
Structure-activity studies of fentanyl
Casy,Huckstep
, p. 605 - 608 (2007/10/02)
The preparation of analogues of fentanyl with para substituents in the anilino aromatic ring, anilino nitrogen separated from phenyl by methylene or bimethylene, and phenacyl replacing propionyl as the N-acyl substituent is reported. Although all para sub