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121321-59-3

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121321-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121321-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,2 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121321-59:
(8*1)+(7*2)+(6*1)+(5*3)+(4*2)+(3*1)+(2*5)+(1*9)=73
73 % 10 = 3
So 121321-59-3 is a valid CAS Registry Number.

121321-59-3Downstream Products

121321-59-3Relevant articles and documents

Reactions of aryloxy anions with organometallic aryl cation equivalents; a route to substituted diphenyl ethers

Hossner, Frank,Voyle, Martyn

, p. 365 - 372 (1988)

Tricarbonyl(1,4-dichlorobenzene)chromium(0) and chlorobenzene(cyclopentadienyl)iron(II) hexafluorophosphate undergo nucleophilic substitution with sodium phenoxide to give tricarbonyl(4-chloro-1-phenoxybenzene)chromium(0) and phenoxybenzene(cyclopentadienyl)iron(II) hexafluorophosphate, respectively.In the former case, the second chlorine is subsequently displaced by methoxide, and this represents a potencially versatile synthsis of substituted diphenyl ethers.Neither of the complexes react with 2,6-dibromo-4-methylphenoxide, but both phenoxides add to substituted tricarbonylcyclohexadienyliumiron complexes to give neutral tricarbonyldieneiron(0) complexes.

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