Cas 1268849-55-3,C26H20N2O6S

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Check Digit Verification of cas no

The CAS Registry Mumber 1268849-55-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,8,4 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1268849-55:
(9*1)+(8*2)+(7*6)+(6*8)+(5*8)+(4*4)+(3*9)+(2*5)+(1*5)=213
213 % 10 = 3
So 1268849-55-3 is a valid CAS Registry Number.

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1268849-55-3Relevant academic research and scientific papers

L-Threonine-derived novel bifunctional phosphine-sulfonamide catalyst-promoted enantioselective aza-morita-Baylis-Hillman reaction

Zhong, Fangrui,Wang, Youqing,Han, Xiaoyu,Huang, Kuo-Wei,Lu, Yixin

supporting information; scheme or table, p. 1310 - 1313 (2011/04/26)

A series of novel bifunctional phosphine-sulfonamide organic catalysts were designed and readily prepared from natural amino acids, and they were utilized to promote enantioselective aza-Morita-Baylis-Hillman (MBH) reactions. l-Threonine-derived phosphine

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