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505087-60-5

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505087-60-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 505087-60-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,5,0,8 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 505087-60:
(8*5)+(7*0)+(6*5)+(5*0)+(4*8)+(3*7)+(2*6)+(1*0)=135
135 % 10 = 5
So 505087-60-5 is a valid CAS Registry Number.

505087-60-5Relevant articles and documents

Palladium-catalyzed coupling of propargylic carbonates with N-tosylhydrazones: Highly selective synthesis of substituted propargylic N-sulfonylhydrazones and vinylallenes

Chen, Zi-Sheng,Duan, Xin-Hua,Wu, Lu-Yong,Ali, Shaukat,Ji, Ke-Gong,Zhou, Ping-Xin,Liu, Xue-Yuan,Liang, Yong-Min

, p. 6918 - 6921 (2011/07/08)

An efficient palladium-catalyzed coupling of propargylic carbonates (1) with N-tosylhydrazones (2, 2′) has been carried out. A wide range of propargylic N-sulfonylhydrazones (3) and multisubstituted vinylallenes (4) can be obtained selectively by using either [PdCl2(CH3CN) 2] or [Pd2(dba)3] as catalysts. (dba=trans,trans-dibenzylideneacetone, dppp=propane-l,3- diylbis(diphenylphosphane), Ts=4-toluenesulfonyl.) Copyright

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