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84211-75-6

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84211-75-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84211-75-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,1 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84211-75:
(7*8)+(6*4)+(5*2)+(4*1)+(3*1)+(2*7)+(1*5)=116
116 % 10 = 6
So 84211-75-6 is a valid CAS Registry Number.

84211-75-6Downstream Products

84211-75-6Relevant articles and documents

A Highly Efficient Copper-Mediated Radioiodination Approach Using Aryl Boronic Acids

Zhang, Pu,Zhuang, Rongqiang,Guo, Zhide,Su, Xinhui,Chen, Xiaoyuan,Zhang, Xianzhong

, p. 16783 - 16786 (2016/11/17)

A convenient and quantitative radioiodination method by copper-mediated cross-coupling of aryl boronic acids was developed. The mild labeling conditions, ready availability of the boronic acid substrate, simple operation, broad functional group tolerance and excellent radiochemical yield (RCY) make this a practical strategy for radioiodine labeling without further purification.

N.c.a. radioiodination of deactivated arenes with N-chlorosuccinimide in trifluoromethanesulfonic acid

Mennicke,Holschbach,Coenen

, p. S801-S803 (2007/10/03)

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No-carrier-added Radiobromination and Radioiodination of Aromatic Rings using In Situ Generated Peracetic Acid

Moerlein, Stephen M.,Beyer, Werner,Stoecklin, Gerhard

, p. 779 - 786 (2007/10/02)

Peracetic acid generated in situ from aqueous hydrogen peroxide and glacial acetic acid was examined as an oxidizing agent for electrophilic aromatic bromination and iodination without chlorinated side products.No-carrier-added (n.c.a.) 77Br and 131I were used with simple organic aromatic compounds or aryltrimethyl-tin, -germanium, and -silicon organometallic compounds to identify reaction parameters which influence this electrophilic halogenation method.N.c.a. aromatic halogenodeprotonation using peracetic acid was relatively slow and resulted in high labelling yields only with aromatic rings that were activated toward electrophilic substitution.By contrast, high radiochemical yields were rapidly obtained via iododestannylation of aromatic rings regardless of their degree of electronic activation.Useful labelling yields were also achieved using bromodestannylation reactions with aromatic rings deactivated toward electrophiles, but optimum yields with activated systems required the use of germylated arenes as substrates.The practical aspects of aromatic halogenodemetallation and halogenodeprotonation as n.c.a. electrophilic halogenation techniques with in situ generated peracetic acid are outlined.

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