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6856-59-3

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6856-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6856-59-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,5 and 6 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6856-59:
(6*6)+(5*8)+(4*5)+(3*6)+(2*5)+(1*9)=133
133 % 10 = 3
So 6856-59-3 is a valid CAS Registry Number.

6856-59-3Relevant articles and documents

Highly selective aromatic alkylation of phenol and anisole by using recyclable bronsted acidic ionic liquid systems

Titze-Frech, Karin,Ignatiev, Nikolai,Uerdingen, Marc,Schulz, Peter Steffen,Wasserscheid, Peter

, p. 6961 - 6966 (2013/11/06)

A highly efficient ionic liquid catalyst system for selective alkylation of phenol and anisole with alkenes is described. By using Bronsted acidic triflate ionic liquids containing the SO3H group attached to the cation, it was possible to recycle the catalyst and reuse it after a simple workup procedure. Moreover, selectivity towards the monoalkylated products was improved to 93 % by using a biphasic system. A sulfonic acid functionalized ionic liquid is used as catalyst in the hexylation of phenol and anisol, enabling very high product selectivities, simple product isolation and effective catalyst recycling. The observed selectivity boost is mainly due to differential solubility effects of the liquid-liquid biphasic reaction system established by the ionic liquid catalyst. Copyright

Structures and pesticidal activities of derivatives of dinitro-phenols. IV. Preparation of certain 2-(alpha-branched alkyl)-4,6-dinitro- and 4-(alpha-branched alkyl)-2,6-dinitro-phenols.

Pianka,Edwards

, p. 2281 - 2290 (2007/10/05)

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