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845730-06-5

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845730-06-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 845730-06-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,5,7,3 and 0 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 845730-06:
(8*8)+(7*4)+(6*5)+(5*7)+(4*3)+(3*0)+(2*0)+(1*6)=175
175 % 10 = 5
So 845730-06-5 is a valid CAS Registry Number.

845730-06-5Relevant articles and documents

Chlorosulphonation of 2-anilino-1,4-naphthoquinone and synthesis of newer sulphonyl derivatives

Berghot, Moged A.,Almuaikel, Nayef S.

, p. 1907 - 1922 (2007/10/03)

Synthesis of 2-anilino-1,4-napthoquinone-3-sulphonyl chloride (2) was achieved from the reaction of the title compound with chlorosulphonic acid. The interesting derivative 2 was used as a building block for synthesis of the sulphonyl derivatives 3-24. All these sulphonyl derivatives were characterized by the physical and spectral data (IR, Mass, 1H- and 13C NMR spectra).

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