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213834-81-2

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213834-81-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 213834-81-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,8,3 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 213834-81:
(8*2)+(7*1)+(6*3)+(5*8)+(4*3)+(3*4)+(2*8)+(1*1)=122
122 % 10 = 2
So 213834-81-2 is a valid CAS Registry Number.

213834-81-2Downstream Products

213834-81-2Relevant articles and documents

6-Acyl-4-aryl/alkyl-5,7-dihydroxycoumarins as anti-inflammatory agents

Lin, Chun-Mao,Huang, Sheng-Tung,Lee, Fu-Wei,Kuo, Hsien-Saw,Lin, Mei-Hsiang

, p. 4402 - 4409 (2006)

A series of coumarin derivatives were synthesized in two steps from phloroglucinol. The anti-inflammatory activities of these derivatives were evaluated by means of inhibiting NO production in LPS-induced RAW 264.7 cells. Derivatives 3, 8, 10, 11, and 13 exhibited low micromolar levels of anti-inflammatory activities, and these derivatives also protected DNA against hydroxyl radical attack. Coumarin derivative 8 was the most potent derivative among those tested herein against NO production in LPS-induced RAW 264.7 cells with an IC50 value of 7.6 μM, and it effectively reduced the hydroxyl radical production by 50% at 100 μM in the electron spin resonance study.

Minor coumarins from Calophyllum teysmannii var. inophylloide and synthesis of cytotoxic calanone derivatives

Cao, Shu-Geng,Wu, Xiao-Hua,Sim, Keng-Yeow,Tan, Benny H. K.,Vittal, Jagadese J.,Pereira, Joan T.,Goh, Swee-Hock

, p. 1404 - 1416 (2007/10/03)

A chemotaxonomic survey for biologically active compounds from Malaysian Calophyllum species led to the finding of the four new benzoylcoumarins 1a, 2, 3, and 4a (including the unusual prenylated 6-benzoylcoumarin 1a, two uncommon coumarins 5 and 6a with

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