186134-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186134-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,1,3 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 186134-20:
(8*1)+(7*8)+(6*6)+(5*1)+(4*3)+(3*4)+(2*2)+(1*0)=133
133 % 10 = 3
So 186134-20-3 is a valid CAS Registry Number.
186134-20-3Relevant academic research and scientific papers
Synthesis of Bromo-iodo-hydroquinone Monoalkyl Ethers
Hoeger, Sigurd
, p. 273 - 278 (2007/10/03)
Two methods for the preparation of 2-bromo-5-iodo-p-alkoxyphenols and the isomeric 5-bromo-2-iodo-p-alkoxyphenols are reported in detail.In both cases the key to successful synthesis is the use of the difference in ortho-directing power of phenols, phenol
