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900149-24-8

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900149-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 900149-24-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,1,4 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 900149-24:
(8*9)+(7*0)+(6*0)+(5*1)+(4*4)+(3*9)+(2*2)+(1*4)=128
128 % 10 = 8
So 900149-24-8 is a valid CAS Registry Number.

900149-24-8Downstream Products

900149-24-8Relevant articles and documents

A green process for oxidation of p-nitrotoluene catalyzed by metalloporphyrins under mild conditions

Wang, Lanzhi,She, Yuanbin,Zhong, Rugang,Ji, Hongbing,Zhang, Yanhui,Song, Xufeng

, p. 757 - 761 (2006)

A novel synthetic technology of p-nitrobenzoic acid has been investigated with dioxygen by using metalloporphyrins RTPP-MIIICl (M = Fe, Co, Mn) as biomimetic catalysts. Oxidation of p-nitrotoluene to p-nitrobenzoic acid under 2.0 MPa of O2 in the presence of a microamount of metalloporphyrins (RTPP-MIIICl) at 55 °C was achieved with the highest (up to 90.4%) yield. Further research results show that the catalytic activities were relative to the nature of the substituted groups and the central metal ions of metalloporphyrins. For the metalloporphyrins with the same center metal ions, the greater the electron-withdrawing degree of groups in the porphyrin ring, the higher the catalytic activities of the metalloporphyrins. The catalytic activities for metalloporphyrins with different center metal ions followed the order RTPPMn IIICl > RTPP Fe IIICl > RTPP Co IIICl.

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