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89228-68-2

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89228-68-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89228-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,2 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89228-68:
(7*8)+(6*9)+(5*2)+(4*2)+(3*8)+(2*6)+(1*8)=172
172 % 10 = 2
So 89228-68-2 is a valid CAS Registry Number.

89228-68-2Downstream Products

89228-68-2Relevant articles and documents

CLAISEN REARRANGEMENT OF ARYL PROPARGYL ETHERS IN POLY(ETHYLENE GLYCOL) - A REMARKABLE SUBSTITUENT AND SOLVENT EFFECT

Rao, Usha,Balasubramanian, K. K.

, p. 5023 - 5024 (2007/10/02)

The Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol)-200 at 220 o C affords products in good yields.Aryl propargyl ethers containing electron donating groups yield (2H)-benzopyrans and those containing electron withdrawing groups yield 2-methylbenzofurans.

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