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708-21-4

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708-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 708-21-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,0 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 708-21:
(5*7)+(4*0)+(3*8)+(2*2)+(1*1)=64
64 % 10 = 4
So 708-21-4 is a valid CAS Registry Number.

708-21-4Downstream Products

708-21-4Relevant articles and documents

Greener synthesis using hydrogen peroxide in ethyl acetate of alicyclic ring-fused benzimidazoles and anti-tumour benzimidazolequinones

Aldabbagh, Fawaz,Gurry, Michael,Keane, Lee-Ann J.,Sweeney, Martin

supporting information, p. 3565 - 3567 (2017/10/06)

Environmentally-friendly and cost effective hydrogen peroxide in ethyl acetate was used to prepare in high yields pyrrolo[1,2-a]benzimidazoles from commercial o-(pyrrolidin-1-yl)anilines without the requirement for organic-aqueous extraction and chromatography. Six, seven and eight membered ring-fused analogues were similarly obtained in high yields with methanesulfonic acid required for the pyrido[1,2-a]benzimidazole. Anti-tumour benzimidazolequinone derivatives were obtained in high yield via the cyclization of 3,6-dimethoxy-2-(cycloamino)anilines.

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