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129940-02-9

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129940-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129940-02-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,4 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129940-02:
(8*1)+(7*2)+(6*9)+(5*9)+(4*4)+(3*0)+(2*0)+(1*2)=139
139 % 10 = 9
So 129940-02-9 is a valid CAS Registry Number.

129940-02-9Downstream Products

129940-02-9Relevant articles and documents

Applications of Intramolecular Diels-Alder Reactions to Alkaloid Synthesis. A Formal Total Synthesis of (+/-)-Dendrobine

Martin, Stephen F.,Li, Wei

, p. 642 - 650 (2007/10/02)

A facile synthesis of the tricyclic enone 3 was completed; since 3 was an intermediate in a previous synthesis of (+/-)-dendrobine (1), this achievement constitutes a formal total synthesis of the racemic title alkaloid.The key strategic element of the ap

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