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219815-16-4

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219815-16-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219815-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,1 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 219815-16:
(8*2)+(7*1)+(6*9)+(5*8)+(4*1)+(3*5)+(2*1)+(1*6)=144
144 % 10 = 4
So 219815-16-4 is a valid CAS Registry Number.

219815-16-4Downstream Products

219815-16-4Relevant articles and documents

Concentrated solar radiation as a renewable heat source for a preparative-scale and solvent-free Biginelli reaction

Gadkari, Yatin U.,Hatvate, Navnath T.,Takale, Balaram S.,Telvekar, Vikas N.

supporting information, p. 8167 - 8170 (2020/06/09)

A well-known Biginelli reaction for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones was performed in an environmentally responsible manner. Large numbers of substrates were screened, and found to give excellent yields of the desired products. In

UV-Light-Irradiated Trifluoromethylation of Diheteroaryl Disulfides with CF3SO2Na

Cao, Bao-Qian,Qiu, Yi-Feng,Zhang, Xi,Zhu, Zheng-He,Quan, Zheng-Jun,Wang, Xi-Cun

supporting information, p. 1208 - 1214 (2019/02/07)

A simple protocol for the UV light irradiated preparation of heteroaryl trifluoromethyl thioethers from disulfides and inexpensive, environmentally sodium triflinate (CF3SO2Na) has been developed. The features of simple and clean rea

An efficient synthesis of biopertinent dihydropyrimidine (thi) one derivatives via three-component one-pot synthesis catalyzed by tetrachlorosilane

Khatab,El-Bayouki,Basyouni,Sroor

, p. 291 - 305 (2015/10/20)

SERIES of dihydropyrimidine(thi)one derivatives were prepared, in good yields at room temperature by using a modified Biginelli reaction. The products were obtained through a one-pot three-component coupling of β-diketones, aldehydes and urea (or thiourea

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