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225789-83-3

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225789-83-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 225789-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,7,8 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 225789-83:
(8*2)+(7*2)+(6*5)+(5*7)+(4*8)+(3*9)+(2*8)+(1*3)=173
173 % 10 = 3
So 225789-83-3 is a valid CAS Registry Number.

225789-83-3Relevant articles and documents

Unsaturated alkylidyne ligands bearing a terminal isocyanide functionality and intervening ethynylbenzene groups

Mayr, Andreas,Pui Yin Yu, Marie

, p. 223 - 227 (1999)

The synthesis of complexes 2 [W(CC6H4(CCC6H4NH 2-4)-4)Cl(CO)2(dppe)], and 4 [W(CC6H4(CCC6H4(CCC 6H2iPr2-3,5-NHCHO-4)-4)-4)Cl(CO) 2(dppe)], was achieved by Pd(II) catalyzed cross-coupling reactions of complex 1 [W(CC6H4I-4)Cl(CO)2(dppe)], with the respective aromatic acetylenes. Formylation of complex 2 with acetic formic anhydride affords the formamide 3 [W(CC6H4(CCC6H 4NHCHO-4)-4)Cl(CO)2(dppe)]. The isocyanide derivatives 5 [W(CC6H4(CCC6H4NC-4)-4)Cl(CO) 2(dppe)], and 6 [W(CC6H4(CCC6H4(CCC 6H2iPr2-3,5-NC-4)-4)-4)Cl(CO) 2(dppe)], were obtained by dehydration of complexes 3 and 4 with triphosgene/NEt3.

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