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858676-94-5

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858676-94-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 858676-94-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,6,7 and 6 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 858676-94:
(8*8)+(7*5)+(6*8)+(5*6)+(4*7)+(3*6)+(2*9)+(1*4)=245
245 % 10 = 5
So 858676-94-5 is a valid CAS Registry Number.

858676-94-5Relevant articles and documents

Total synthesis of RK-397

Denmark, Scott E.,Fujimori, Shinji

, p. 8971 - 8973 (2007/10/03)

An enantioselective synthesis of the polyene macrolide RK-397 is described. The use of the same eight-carbon building block twice for the construction of the polyol chain allowed for a highly convergent synthesis. The synthesis highlights stereoselective vinylogous aldol addition using a chiral bisphosphoramide as well as a sequential palladium-catalyzed cross-coupling reaction for the preparation of key fragments. Copyright

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