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67850-91-3

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67850-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67850-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,5 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 67850-91:
(7*6)+(6*7)+(5*8)+(4*5)+(3*0)+(2*9)+(1*1)=163
163 % 10 = 3
So 67850-91-3 is a valid CAS Registry Number.

67850-91-3Relevant articles and documents

Tris(pentafluorophenyl)borane: a mild and efficient catalyst for the chemoselective tritylation of alcohols

Reddy, Ch. Raji,Rajesh,Balaji,Chethan

, p. 970 - 973 (2008/09/17)

An efficient acid-catalyzed protection of alcohols as trityl ethers is described using triphenylmethanol in the presence of tris(pentafluorophenyl)borane (3 mol %) in dichloromethane at room temperature. The chemoselectivity of this protocol is demonstrat

Saponin and sapogenol. XXVI. Steroidal saponins from the starfish Acanthaster planci L. (Crown of Thorns). (2) Structure of the major saponin thornasteroside A

Kitagawa,Kobayashi

, p. 1864 - 1873 (2007/10/06)

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