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4091-04-7

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4091-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4091-04-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4091-04:
(6*4)+(5*0)+(4*9)+(3*1)+(2*0)+(1*4)=67
67 % 10 = 7
So 4091-04-7 is a valid CAS Registry Number.

4091-04-7Downstream Products

4091-04-7Relevant articles and documents

Efficient synthesis of 19-31 membered macrocyclic tetralactones via ring closing metathesis in ionic liquids

Muthusamy, Sengodagounder,Azhagan, Datschnamoorthy

scheme or table, p. 8196 - 8202 (2010/11/02)

The ring closing metathesis reaction in the presence of Grubbs catalyst was demonstrated using several ionic liquids to synthesize a range of macrocyclic tetralactones having ring size of 19 to 31 membered with different spacers. The ionic liquid [mmim][PF6] was found to be an excellent solvent and the recovery of the catalyst was demonstrated. X-ray analysis of a representative macrocyclic tetralactone was also reported.

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