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1257092-75-3

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1257092-75-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257092-75-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,0,9 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1257092-75:
(9*1)+(8*2)+(7*5)+(6*7)+(5*0)+(4*9)+(3*2)+(2*7)+(1*5)=163
163 % 10 = 3
So 1257092-75-3 is a valid CAS Registry Number.

1257092-75-3Downstream Products

1257092-75-3Relevant academic research and scientific papers

Reactions of terminal polyynes with benzyl azide

Luu, Thanh,Medos, Boris J.,Graham, Erin R.,Vallee, Danielle M.,McDonald, Robert,Ferguson, Michael J.,Tykwinski, Rik R.

experimental part, p. 8498 - 8507 (2011/03/19)

Terminal di-, tri-, tetra-, and pentaynes substituted with a variety of functional groups react with benzyl azide in the presence of CuSO 4·5H2O and ascorbic acid to give derivatives of 4-ethynyl-, 4-butadiynyl-, 4-hexatriynyl-, and

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