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188350-51-8

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188350-51-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188350-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,3,5 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 188350-51:
(8*1)+(7*8)+(6*8)+(5*3)+(4*5)+(3*0)+(2*5)+(1*1)=158
158 % 10 = 8
So 188350-51-8 is a valid CAS Registry Number.

188350-51-8Downstream Products

188350-51-8Relevant articles and documents

PPh3-mediated intramolecular conjugation of alkyl halides with electron-deficient olefins: Facile synthesis of chromans and relevant analogues

Zhu, Jian-Bo,Wang, Peng,Liao, Saihu,Tang, Yong

, p. 4570 - 4572 (2013/06/04)

With the mediation of phosphine, the direct intramolecular coupling of two electrophiles-alkyl halides with electron-deficient olefins-has been successfully realized in an intramolecular conjugate addition manner. The reaction provides a new approach for

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