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78945-64-9

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78945-64-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78945-64-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,4 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 78945-64:
(7*7)+(6*8)+(5*9)+(4*4)+(3*5)+(2*6)+(1*4)=189
189 % 10 = 9
So 78945-64-9 is a valid CAS Registry Number.

78945-64-9Relevant articles and documents

Nonreaction-based fluorescent Au3+ probe that gives fast response in aqueous solution

?zta?, Zahide,Pamuk, Melek,Algi, Fatih

, p. 2048 - 2051 (2013/03/13)

The design and synthesis of a simple, selective and efficient turn-off fluorescent Au3+ probe, namely, diethyl 1-phenyl-2,5-di(thiophen-2- yl)-1H-pyrrole-3,4-dicarboxylate (1), are highlighted. To our best knowledge, this is the first example of nonreaction-based fluorescent Au3+ probes.

Practical one-pot sequential procedure for the preparation of N-arylated 3,4-disubstituted pyrroles from alkenes

Zhu, Rui,Xing, Lixin,Liu, Yantao,Deng, Fangkun,Wang, Xinyan,Hu, Yuefei

scheme or table, p. 3897 - 3901 (2009/04/07)

By using tBuONa and Cs2CO3 as a mixed base, van Leusen pyrrole synthesis and copper-catalyzed N-arylation of pyrrole proceeded sequentially in a single flask to give N-arylated 3,4-disubstituted pyrroles smoothly. Thus, a series of desired N-arylated pyrroles were prepared directly from the electron-deficient alkenes.

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