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C40H41Cl3N4O12S is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

442663-40-3

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442663-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442663-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,6 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 442663-40:
(8*4)+(7*4)+(6*2)+(5*6)+(4*6)+(3*3)+(2*4)+(1*0)=143
143 % 10 = 3
So 442663-40-3 is a valid CAS Registry Number.

442663-40-3Upstream product

442663-40-3Relevant academic research and scientific papers

Total synthesis of ecteinascidin 743

Endo, Atsushi,Yanagisawa, Arata,Abe, Masanao,Tohma, Shigemitsu,Kan, Toshiyuki,Fukuyama, Tohru

, p. 6552 - 6554 (2002)

The total synthesis of ecteinascidin 743 (1), an extremely potent antitumor agent, has been accomplished. The synthesis features Ugi's 4CC reaction, intramolecular Heck reaction, phenol-aldehyde cyclization, and acid-induced intramolecular sulfide formation. Copyright

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