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828937-73-1

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828937-73-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 828937-73-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,8,9,3 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 828937-73:
(8*8)+(7*2)+(6*8)+(5*9)+(4*3)+(3*7)+(2*7)+(1*3)=221
221 % 10 = 1
So 828937-73-1 is a valid CAS Registry Number.

828937-73-1Upstream product

828937-73-1Downstream Products

828937-73-1Relevant articles and documents

Novel macrocyclic templates by ring enlargement of ansa-steroids

B?urle, Stefan,Blume, Thorsten,Leroy, Emmanuel,Mengel, Anne,Parchmann, Christian,Schmidt, Kathrin,Skuballa, Werner

, p. 9569 - 9571 (2007/10/03)

Ring enlargement of ansa-steroids leads to a variety of novel templates which are suitable for the preparation of diverse libraries of natural product derivatives. Key steps for the synthesis of these highly functionalized templates were either an ozonolysis-derivatization-ring closing metathesis-sequence or a macrolactonization.

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