17541-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17541-14-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,4 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17541-14:
(7*1)+(6*7)+(5*5)+(4*4)+(3*1)+(2*1)+(1*4)=99
99 % 10 = 9
So 17541-14-9 is a valid CAS Registry Number.
17541-14-9Relevant articles and documents
Synthesis of ethynyl end-capped oligo-aryl ethers
Xu, Jinfeng,Lai, Guo-Qiao,Wang, Cheng-Yun,Shen, Yong-Jia
, p. 572 - 574 (2007/10/03)
A series of aryl ether oligomers end-capped with ethynyl groups have been synthesised via a three-step process, i.e. iodination of oligo-aryl ethers, nucleophilic substitution of the iodide group with 2-methyl-3-butyn-2-ol catalysed by Pd/Cu and subsequen