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177366-40-4

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177366-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177366-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,3,6 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 177366-40:
(8*1)+(7*7)+(6*7)+(5*3)+(4*6)+(3*6)+(2*4)+(1*0)=164
164 % 10 = 4
So 177366-40-4 is a valid CAS Registry Number.

177366-40-4Relevant articles and documents

Total synthesis of phenoxan and a related pyrone derivative

Ishibashi, Yasuharu,Ohba, Shigeru,Nishiyama, Shigeru,Yamamura, Shosuke

, p. 2997 - 3000 (2007/10/03)

Phenoxan, HIV-1 inhibitor isolated from the myxobacteria, has been synthesized in 16 steps starting from ethyl 2-methylacetoacetate. The related isomer corresponding to the oxazole part was also obtained via an orthoester-enediol rearrangement.

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