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1276694-75-7

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1276694-75-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1276694-75-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,6,6,9 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1276694-75:
(9*1)+(8*2)+(7*7)+(6*6)+(5*6)+(4*9)+(3*4)+(2*7)+(1*5)=207
207 % 10 = 7
So 1276694-75-7 is a valid CAS Registry Number.

1276694-75-7Downstream Products

1276694-75-7Relevant academic research and scientific papers

Synthesis of coumestan derivatives via FeCl3-mediated oxidative ring closure of 4-hydroxy coumarins

Tang, Lina,Pang, Yongle,Yan, Qiao,Shi, Liuqing,Huang, Jianhui,Du, Yunfei,Zhao, Kang

, p. 2744 - 2752 (2011/06/17)

A concise and efficient approach to the syntheses of coumestan analogues has been developed. The underpinning strategy involves a FeCl 3-mediated direct intramolecular oxidative annellation of 4-hydroxy-3-phenyl-2H-chromen-2-one derivatives. Utilizing this synthetic protocol, a variety of coumestan derivatives were conveniently obtained from readily available reagents.

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