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157750-33-9

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157750-33-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157750-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,5 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157750-33:
(8*1)+(7*5)+(6*7)+(5*7)+(4*5)+(3*0)+(2*3)+(1*3)=149
149 % 10 = 9
So 157750-33-9 is a valid CAS Registry Number.

157750-33-9Downstream Products

157750-33-9Relevant articles and documents

Tris-chelate complexes of cobalt(III) with N-[di(alkyl/aryl)carbamothioyl] benzamide derivatives: Synthesis, crystallography and catalytic activity in TBHP oxidation of alcohols

Gunasekaran,Jerome,Ng, Seik Weng,Tiekink, Edward R.T.,Karvembu

, p. 156 - 162 (2012/02/16)

New six coordinated tris-chelate cobalt(III) complexes of the type [Co(L)3] (1-4) {where HL = N-[di(alkyl/aryl)carbamothioyl]benzamide derivatives}were prepared from the reaction between CoCl2· 6H2O and N-[di(alkyl/aryl)carbamothioyl]benzamide in ethanol and characterized by elemental analysis and spectral data (UV/Vis, IR, 1H & 13C NMR). The molecular structure of a representative complex [Co(L1)3] (1) [where HL1 = N-(diisopropylcarbamothioyl)benzamide], was determined by single crystal X-ray diffraction method and reveals a distorted octahedral geometry and a facial configuration of S atoms around the Co(III) center. These complexes act as efficient catalysts for the oxidation of alcohols to their corresponding aldehydes or ketones in presence of tert-butyl hydroperoxide (TBHP) at 80°C.

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