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72021-02-4

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72021-02-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72021-02-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,2 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72021-02:
(7*7)+(6*2)+(5*0)+(4*2)+(3*1)+(2*0)+(1*2)=74
74 % 10 = 4
So 72021-02-4 is a valid CAS Registry Number.

72021-02-4Downstream Products

72021-02-4Relevant academic research and scientific papers

A colorimetric agarose gel for formaldehyde measurement based on nanotechnology involving Tollens reaction

Zeng, Jing-Bin,Fan, Shi-Guang,Zhao, Cui-Ying,Wang, Qian-Ru,Zhou, Ting-Yao,Chen, Xi,Yan, Zi-Feng,Li, Yan-Peng,Xing, Wei,Wang, Xu-Dong

, p. 8121 - 8123 (2014)

Gold nanoparticles (Au NPs) coupled with Tollens reagent were used for measuring formaldehyde. Au@Ag core-shell NPs were formed along with distinct color changes from pink to deep yellow. This colorimetric system was further immobilized into an agarose ge

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