18067-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18067-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,6 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18067-33:
(7*1)+(6*8)+(5*0)+(4*6)+(3*7)+(2*3)+(1*3)=109
109 % 10 = 9
So 18067-33-9 is a valid CAS Registry Number.
18067-33-9Relevant academic research and scientific papers
A SHORT ACCESS TO IRIDOID PRECURSORS
Cossy, J.
, p. 4113 - 4116 (2007/10/02)
A general approach to C-5 oxygenated iridoids is obtained by photoreductive cyclization of δ,ε-acetylenic cyclopentanones.