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20108-67-2

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20108-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20108-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,0 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20108-67:
(7*2)+(6*0)+(5*1)+(4*0)+(3*8)+(2*6)+(1*7)=62
62 % 10 = 2
So 20108-67-2 is a valid CAS Registry Number.

20108-67-2Downstream Products

20108-67-2Relevant articles and documents

Efficient acylation and one-pot synthesis of dehydroandrographolide succinate on a large scale assisted with microwave radiation

Luo, Xin-Feng,He, Ling,Yin, Hai-Bin,Zheng, Hu,Bei, Di,Deng, Jin-Jin,Huang, Wen-Cai

experimental part, p. 3444 - 3452 (2009/12/05)

A rapid and convenient method for acylation and large-scale synthesis of dehydroandrographolide succinate has been developed under microwave irradiation. It is a one-pot condensation and is compatible with dehydration and rearrangement of double bond in mild reaction conditions with good yield, high purity (up to 99.8%), time-savings, few pollutants and low cost. In addition, a number of acylation derivatives were synthesized under microwave irradiation.

The structure of adenomycin (C19-97 substance)

Ogita,Otake,Miyazaki,et al.

, p. 3203 - 3206 (2007/10/02)

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