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42154-06-3

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42154-06-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42154-06-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,5 and 4 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42154-06:
(7*4)+(6*2)+(5*1)+(4*5)+(3*4)+(2*0)+(1*6)=83
83 % 10 = 3
So 42154-06-3 is a valid CAS Registry Number.

42154-06-3Relevant articles and documents

Synthesis and Characterization of Novel p-Terphenoquinone Analogues Involving a Central Dihydrothiophenediylidene Structure

Takahashi, Kazuko,Suzuki, Tsuyoshi,Akiyama, Kimio,Ikegami, Yusaku,Fukazawa, Yosbimasa

, p. 4576 - 4583 (2007/10/02)

The title quinones, 2,5-bis(4-oxo-2,5-cyclohexadien-l-ylidene)-2,5-dihydrothiophene and its tetraalkyl derivatives, were synthesized via 2-(4-alkoxyphenyI)thiophene and 2,5-bis(4-alkoxyphenyl)thiophene conveniently prepared by using palladium(0)-catalyzed

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