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74032-91-0

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74032-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74032-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,3 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74032-91:
(7*7)+(6*4)+(5*0)+(4*3)+(3*2)+(2*9)+(1*1)=110
110 % 10 = 0
So 74032-91-0 is a valid CAS Registry Number.

74032-91-0Relevant articles and documents

Synthesis of aryl α-O-L-rhamnopyranoside by two-step reaction in one pot

Liu, Nianping,Tian, Xiangguang,Ding, Zekun,Zhou, Yongda,Zhang, Wan,Wang, Qingbing,Zhang, Yi,Gu, Yijun,Zhang, Jianbo

, p. 220 - 234 (2017/11/10)

The title compounds were conveniently synthesized by a phase transfer catalyzed approach in two steps and one pot using the rhamnopyranosyl chloride as key intermediate. The twostep one-pot procedure is more convenient and environmentally friendly, compared to the published synthetic routes. Besides, the structure-reactivity relationship and the plausible mechanism for this base-catalyzed glycosylation were discussed bymeans of the Hammett equation.

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