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121898-55-3

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121898-55-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121898-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,9 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121898-55:
(8*1)+(7*2)+(6*1)+(5*8)+(4*9)+(3*8)+(2*5)+(1*5)=143
143 % 10 = 3
So 121898-55-3 is a valid CAS Registry Number.

121898-55-3Relevant articles and documents

Temperature-independent stereocontrolled [2+2] cycloaddition. Potential of the 2,4-pentanediol tether in asymmetric reactions as a differential activation entropy promoter

Sugimura, Takashi,Tei, Takahiro,Mori, Atsushi,Okuyama, Tadashi,Tai, Akira

, p. 2128 - 2129 (2007/10/03)

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Stereospecific Cyclization of Vinyl Ether Alcohols. Facile Synthesis of (-)-Lardolure

Kaino, Makoto,Naruse, Yuji,Ishihara, Kazuaki,Yamamoto, Hisashi

, p. 5814 - 5815 (2007/10/02)

An efficient and stereospecific ring formation from unsaturated alcohols, which in turn are prepared by regio- and stereospecific ring opening of acetals, is described.

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