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121057-92-9

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121057-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121057-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,5 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 121057-92:
(8*1)+(7*2)+(6*1)+(5*0)+(4*5)+(3*7)+(2*9)+(1*2)=89
89 % 10 = 9
So 121057-92-9 is a valid CAS Registry Number.

121057-92-9Downstream Products

121057-92-9Relevant articles and documents

MACROHETEROCYCLES XLVIII. SYNTHESIS OF POLYAZAOXACRYPTANDS IN A TWO-PHASE SYSTEM

Luk'yanenko, N. G.,Basok, S. S.,Filonova, L. K.,Kulikov, N. V.

, p. 1537 - 1544 (2007/10/02)

A method is proposed for the production of polyazaoxacryptands by the condensation of N,N'-bis(tosylaminoethyl)diazacrown ethers with ditosyloxy derivatives or dibromides in the toluene-45percent aqueous sodium hydroxide two-phase system.The catalytic act

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