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1586782-05-9

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1586782-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1586782-05-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,6,7,8 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1586782-05:
(9*1)+(8*5)+(7*8)+(6*6)+(5*7)+(4*8)+(3*2)+(2*0)+(1*5)=219
219 % 10 = 9
So 1586782-05-9 is a valid CAS Registry Number.

1586782-05-9Relevant academic research and scientific papers

Asymmetric a-hydroxylation of a lactone with vinylogous pyridone by using a guanidine-urea bifunctional organocatalyst: Catalytic enantioselective synthesis of a key intermediate for (20S)-camptothecin analogues

Watanabe, Tatsuya,Odagi, Minami,Furukori, Kota,Nagasawa, Kazuo

, p. 591 - 597 (2014)

We have developed a catalytic asymmetric synthesis of (S)-4-ethyl-6,6- (ethylenedioxy)-7,8-dihydro-4-hydroxy- 1H-pyrano[3,4-f]indolizine-3,10(4H)dione (5a), a synthetic intermediate for (20S)-camptothecin analogues. A key step in this synthesis is an asym

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