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1218787-60-0

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1218787-60-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1218787-60-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,8,7,8 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1218787-60:
(9*1)+(8*2)+(7*1)+(6*8)+(5*7)+(4*8)+(3*7)+(2*6)+(1*0)=180
180 % 10 = 0
So 1218787-60-0 is a valid CAS Registry Number.

1218787-60-0Downstream Products

1218787-60-0Relevant articles and documents

"click" synthesis of nonsymmetrical bis(1,2,3-triazoles)

Aizpurua, Jesus M.,Azcune, Itxaso,Fratila, Raluca M.,Balentova, Eva,Sagartzazu-Aizpurua, Malaien,Miranda, Jose I.

supporting information; experimental part, p. 1584 - 1587 (2010/06/16)

Chemical Fig. Repretation Unsymmetrically 1,1'-disubstituted 4,4'-bis-1 H-1,2,3-triazoles 4 have been prepared from 4-ethynyl-1,2,3-triazoles 5 and azides. Following a "double-click" strategy, two complementary approaches were implemented for the preparation of the key 4-ethynyltriazole Intermediates 5: (a) the stepwise Swern oxidatlon/Ohira-Bestman alkynylation of readily available 4-hydroxymethyl-1,2,3-triazoles 8 and (b) the stepwise cycloaddition of TMS-1,4-butadiyne 9. The method is highlighted by Its compatibility with orthogonally protected and functlonallzed saccharide-peptide hybrids and its ability to be extended to the trlsubstituted counterparts 12.

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