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121000-23-5

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121000-23-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121000-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,0 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121000-23:
(8*1)+(7*2)+(6*1)+(5*0)+(4*0)+(3*0)+(2*2)+(1*3)=35
35 % 10 = 5
So 121000-23-5 is a valid CAS Registry Number.

121000-23-5Downstream Products

121000-23-5Relevant articles and documents

The use of perchlorato(tetraphenylporphinato)manganese(III) as a reagent for the spectrophotometric determination of anions in nonaqueous solvents

Hinman, A. Scott,McGarty, Karen,Tang, Clement,Pavelich, Brad J.

, p. 545 - 550 (2007/10/02)

Perchlorato(tetraphenylporphinato)manganese(III) (TPPMnClO4) is shown to be a useful reagent for the determination of a variety of anions in nonaqueous media.The analysis is based on the displacement of coordinated perchlorate by more strongly coordinating anions as monitored spectrophotometrically.The procedure is demonstrated for the determination of tetra-alkylammonium salts of nitrate, nitrite, chloride, bromide, iodide, acetate, trifluoroacetate, cyanate, and thiocyanate in acetonitrile.Relative precisions and accuracies of the order of five parts per thousand are indicated.Key words: perchlorato(tetraphenylporphinato)manganese(III), spectrophotometric determination of anions, anions in nonaqueous media.

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