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222843-69-8

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222843-69-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 222843-69-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,8,4 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 222843-69:
(8*2)+(7*2)+(6*2)+(5*8)+(4*4)+(3*3)+(2*6)+(1*9)=128
128 % 10 = 8
So 222843-69-8 is a valid CAS Registry Number.

222843-69-8Relevant articles and documents

Synthesis of salidroside analogues and their ability of DPPH radical scavenging activity

Zheng, Cheng,Guo, Yibing,Meng, Ying,Dou, Sufeng,Shao, Jian,Yang, Yumin

, p. 654 - 664 (2013/07/11)

Salidroside is a phenylpropanoid glycoside isolated from Rhodiolarosea L., a traditional Chinese medicinal plant, and has displayed a broad spectrum of pharmacological properties. In this paper, about 22 novel glycosides have been synthesized and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenge activity of each glycoside has been evaluated. 2-(3,4,5-Trihydroxyphenyl)ethyl β-D-galactopyranoside and 3-(3,4,5-trihydroxyphenyl)propyl β-D-glucopyranoside exhibit significant activity prior to salidroside and Vitamin C with EC50 values of 35.85 μM and 36.71 μM, respectively. The results indicate that the phenolic hydroxyl group of these compounds is important for radical scavenging activity and phenyl ring substitution by electron-donating substituents lead to increased antioxidant activity.

Total synthesis of sulfur-containing pyrroloiminoquinone marine product, (±)-makaluvamine F using hypervalent iodine(III)-induced reactions

Kita, Yasuyuki,Egi, Masahiro,Tohma, Hirofumi

, p. 143 - 144 (2007/10/03)

The first total synthesis of potent cytotoxic makaluvamine F 1, a sulfur-containing pyrroloiminoquinone marine product, has been accomplished using hypervalent iodine(III)-induced reactions.

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