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405921-15-5

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405921-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 405921-15-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,9,2 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 405921-15:
(8*4)+(7*0)+(6*5)+(5*9)+(4*2)+(3*1)+(2*1)+(1*5)=125
125 % 10 = 5
So 405921-15-5 is a valid CAS Registry Number.

405921-15-5Relevant articles and documents

Mixed bases mediated synthesis of thioamides in water

Li, Jiao,Ren, Xuanhe,Li, Ganzhong,Liang, Helong,Zhao, Yajie,Wang, Zhiwu,Li, Heng,Yuan, Bingxin

, p. 229 - 237 (2020)

A mixed bases mediated protocol is developed to synthesize thioamides from N-aryl or N-alkylamide, aldehyde and elemental sulfur in water. This reaction requires no addition of external oxidant and avoids large excess of amides. Various functional groups

Highly efficient synthesis of thioesters in water

Boeini, Hassan Zali,Kashan, Maryam Eshghi

experimental part, p. 1987 - 1991 (2010/07/04)

Thioesters were efficiently prepared via the direct reaction of tertiary thioamides and alkyl halides in water, and in the presence of catalytic amounts of NaI, hexadecyltrimethylammonium bromide (HTAB), and 1,4-diazabicyclo[2.2.2] octane (DABCO). Hence,

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