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98449-74-2

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98449-74-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98449-74-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,4,4 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 98449-74:
(7*9)+(6*8)+(5*4)+(4*4)+(3*9)+(2*7)+(1*4)=192
192 % 10 = 2
So 98449-74-2 is a valid CAS Registry Number.

98449-74-2Relevant articles and documents

Michael Initiated Ring Closure reactions in natural product synthesis: A concise entry to the podophyllins

Harrowven, David C.

, p. 9039 - 9048 (2007/10/02)

A rapid entry towards the Podophyllum lignans is described exemplified by a concise regioselective total synthesis of taiwanin E 5 and chinensinaphthol 6. The approach features a Michael Initiated Ring Closure (MIRC type II) sequence to access the key lig

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