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4258-28-0

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4258-28-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4258-28-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,5 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4258-28:
(6*4)+(5*2)+(4*5)+(3*8)+(2*2)+(1*8)=90
90 % 10 = 0
So 4258-28-0 is a valid CAS Registry Number.

4258-28-0Downstream Products

4258-28-0Relevant articles and documents

Palladium-Catalyzed Hydroxylation of Aryl Halides with Boric Acid

Song, Zhi-Qiang,Wang, Dong-Hui

, p. 8470 - 8474 (2020)

Boric acid, B(OH)3, is proved to be an efficient hydroxide reagent in converting (hetero)aryl halides to the corresponding phenols with a Pd catalyst under mild conditions. Various phenol products were obtained in good to excellent yields. This transformation tolerates a broad range of functional groups and molecules, including base-sensitive substituents and complicated pharmaceutical (hetero)aryl halide molecules.

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