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2564-56-9

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2564-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2564-56-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,6 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 2564-56:
(6*2)+(5*5)+(4*6)+(3*4)+(2*5)+(1*6)=89
89 % 10 = 9
So 2564-56-9 is a valid CAS Registry Number.

2564-56-9Relevant articles and documents

Cu(i)-Catalyzed oxidative homo-coupling of thiazoline-4-carboxylates: Synthesis of 4,4′-bithiazoline derivatives

Fang, Xinxin,Zhang, Kaifan,Yao, Hequan,Huang, Yue

, p. 8030 - 8034 (2016/09/09)

Cu(i)-Catalyzed oxidative homo-coupling of thiazoline-4-carboxylates with good functional group tolerance has been developed. The methodology presented an efficient method to directly construct vicinal carbon-hetero quaternary centers existing in numerous functional molecules and could be applied to the synthesis of 4,4′-bithiazoles which are difficult to prepare by direct C-H activation.

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