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99528-92-4

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99528-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99528-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,5,2 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99528-92:
(7*9)+(6*9)+(5*5)+(4*2)+(3*8)+(2*9)+(1*2)=194
194 % 10 = 4
So 99528-92-4 is a valid CAS Registry Number.

99528-92-4Relevant academic research and scientific papers

TOTAL SYNTHESIS OF CLAVULONES

Shibasaki, Masakatsu,Ogawa, Yuji

, p. 3841 - 3844 (2007/10/02)

Total synthesis of clavulones in naturally occurring form has been accomplished by the aldol coupling of the hydroxy-cyclopentenone 2 efficiently obtainable from 1,2-bis-trimethylsilyloxycyclopentene (4) by using 1,3-hydroxy transposition via the allylic methanesulfonate 11 and the α,β-unsaturated aldehyde 3.

FOUR NEW PROSTANOIDS: CLAVIRIDENONE-A, -B, -C, AND -D FROM THE OKINAWAN SOFT CORAL CLAVULARIA VIRIDIS

Kobayashi, Motomasa,Yasuzawa, Tohru,Yoshihara, Minoru,Akutsu, Hideo,Kyogoku, Yoshimasa,Kitagawa, Isao

, p. 5331 - 5334 (2007/10/02)

The structures of four new prostanoids named claviridenone-a, -b, -c, and -d, which were isolated from the Okinawan soft coral Clavularia viridis, were elucidated as 1, 2, 3, and 4, respectively.

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