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89155-38-4

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89155-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89155-38-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,5 and 5 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89155-38:
(7*8)+(6*9)+(5*1)+(4*5)+(3*5)+(2*3)+(1*8)=164
164 % 10 = 4
So 89155-38-4 is a valid CAS Registry Number.

89155-38-4Downstream Products

89155-38-4Relevant articles and documents

Catalytic transfer hydrogenation of levulinic acid to γ-valerolactone over a bifunctional tin catalyst

Xu, Shaodan,Yu, Deqing,Ye, Tao,Tian, Panpan

, p. 1026 - 1031 (2017/01/13)

The conversion of biomass-derived levulinic acid (LA) to γ-valerolactone (GVL) is important but extremely challenging due to the use of noble metal catalysts and high-pressure gaseous hydrogen. Here we describe the transfer hydrogenation of LA to GVL using 2-propanol as hydrogen donor over a Sn modified silica catalyst (SnO2/SBA-15) which gives high LA conversion (85.1%) and GVL selectivity (95.2%). Key to this success is employing a simply synthesized Sn-modified silica catalyst (SnO2/SBA-15) with both Lewis and Br?nsted acidity, which could synergistically catalyze the tandem steps of hydrogen transfer and esterification, leading to successful transformation of LA to GVL.

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