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217961-50-7

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217961-50-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217961-50-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,9,6 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 217961-50:
(8*2)+(7*1)+(6*7)+(5*9)+(4*6)+(3*1)+(2*5)+(1*0)=147
147 % 10 = 7
So 217961-50-7 is a valid CAS Registry Number.

217961-50-7Downstream Products

217961-50-7Relevant articles and documents

Efficient method for synthesis of angucyclinone antibiotics via gold-catalyzed intramolecular [4 + 2] benzannulation: Enantioselective total synthesis of (+)-ochromycinone and (+)-rubiginone B2

Sato, Kenichiro,Asao, Naoki,Yamamoto, Yoshinori

, p. 8977 - 8981 (2007/10/03)

An efficient synthetic approach to angucyclinone antibiotics, (+)-ochromycinone and (+)-rubiginone B2, is reported. The key step involves the facile formation of 2,3-dihydrophenantren-4(1H)-one skeleton, an important framework of angucyclinone

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