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14902-09-1

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14902-09-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14902-09-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,0 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 14902-09:
(7*1)+(6*4)+(5*9)+(4*0)+(3*2)+(2*0)+(1*9)=91
91 % 10 = 1
So 14902-09-1 is a valid CAS Registry Number.

14902-09-1Relevant articles and documents

Halogenation of Alkyl p-Tolyl Sulfones with Carbon Tetrahalides. Application to the Synthesis of Aromatic Ketones

Kotake, Hiroshi,Inomata, Katsuhiko,Kinoshita, Hideki,Sakamoto, Yasuko,Kaneto, Yoko

, p. 3027 - 3028 (2007/10/02)

Carbanions of alkyl p-tolyl sulfones reacted with carbon tetrahalides to give the corresponding polyhalogenated products in good yields.Some chlorinated sulfones were converted to unsymmetrical ketones by treatment with silver perchlorate in trifluoroacetic acid.

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