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457058-85-4

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457058-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457058-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,5 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 457058-85:
(8*4)+(7*5)+(6*7)+(5*0)+(4*5)+(3*8)+(2*8)+(1*5)=174
174 % 10 = 4
So 457058-85-4 is a valid CAS Registry Number.

457058-85-4Upstream product

457058-85-4Downstream Products

457058-85-4Relevant academic research and scientific papers

Total synthesis of gambierol

Fuwa, Haruhiko,Sasaki, Makoto,Satake, Masayuki,Tachibana, Kazuo

, p. 2981 - 2984 (2002)

(Formula Represented) The first total synthesis of gambierol, a marine polycyclic ether toxin, has been achieved. The synthesis features the Pd(PPh3)4/CuCl/LiCl-promoted Stille coupling for the stereoselective construction of the sen

Total synthesis of (-)-gambierol

Fuwa, Haruhiko,Kainuma, Noriko,Tachibana, Kazuo,Sasaki, Makoto

, p. 14983 - 14992 (2007/10/03)

The first total synthesis of (-)-gambierol (1), a marine polycyclic ether toxin, has been achieved. Key features of the successful synthesis include (1) a convergent union of the ABC and EFGH ring fragments (5 and 6, respectively) via our developed B-alky

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