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143521-46-4

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143521-46-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143521-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,2 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 143521-46:
(8*1)+(7*4)+(6*3)+(5*5)+(4*2)+(3*1)+(2*4)+(1*6)=104
104 % 10 = 4
So 143521-46-4 is a valid CAS Registry Number.

143521-46-4Relevant articles and documents

1-Phenyl-1-benzothiophenium Triflates by a Direct S-Phenylation with Diphenyliodonium Triflate

Kitamura, Tsugio,Yamane, Masakatsu,Zhang, Bian-Xiang,Fujiwara, Yuzo

, p. 1215 - 1219 (1998)

A parent 1-phenyl-1-benzothiophenium triflate was prepared by a direct phenylation of 1-benzothiophene with diphenyliodonium triflate in the presence of a catalytic amount of copper(II) acetate. Various substituted 1-phenyl-1-benzothiophenium triflates we

Preparation and Crystal Structure of a Parent 1-Arylbenzothiophenium Triflate and Its Derivatives

Kitamura, Tsugio,Yamane, Masakatsu,Furuki, Ryuji,Taniguchi, Hiroshi,Shiro, Motoo

, p. 1703 - 1706 (1993)

A parent 1-phenylbenzothiophenium triflate is prepared by reaction of benzothiophene and diphenyliodonium triflate and the single crystal X-ray analysis shows a pyramidal structure about sulfur and a short phenyl-sulfur bond.The less-substituted 1-p

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