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253305-67-8

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253305-67-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253305-67-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,3,0 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 253305-67:
(8*2)+(7*5)+(6*3)+(5*3)+(4*0)+(3*5)+(2*6)+(1*7)=118
118 % 10 = 8
So 253305-67-8 is a valid CAS Registry Number.

253305-67-8Downstream Products

253305-67-8Relevant articles and documents

Trideuteromethylation Enabled by a Sulfoxonium Metathesis Reaction

Shen, Zuyuan,Zhang, Shilei,Geng, Huihui,Wang, Jiarui,Zhang, Xinyu,Zhou, Anqi,Yao, Cheng,Chen, Xiaobei,Wang, Wei

supporting information, p. 448 - 452 (2019/01/14)

A conceptually novel sulfoxonium metathesis reaction between TMSOI and cost-effective DMSO-d6 is developed for the efficient generation of a new trideuteromethylation reagent TDMSOI. The new reagent TDMSOI is produced highly efficiently by simply heating a mixture of TMSOI and DMSO-d6 and directly used for subsequent trideuteromethylation in a "one-pot" operation. The preparative power of the new versatile reagent and the "one-pot" protocol is demonstrated by its use to install the ?CD3 moiety into broad functionalities including phenols, thiophenols, acidic amines, and enolizable methylene units in high yield and at a useful level of deuteration (>87% D).

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