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19374-73-3

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19374-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19374-73-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,3,7 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19374-73:
(7*1)+(6*9)+(5*3)+(4*7)+(3*4)+(2*7)+(1*3)=133
133 % 10 = 3
So 19374-73-3 is a valid CAS Registry Number.

19374-73-3Downstream Products

19374-73-3Relevant articles and documents

10,9-Oxaboraphenanthrenes as luminescent fluorophores

Budanow, Alexandra,Von Grotthuss, Esther,Bolte, Michael,Wagner, Matthias,Lerner, Hans-Wolfram

, p. 1477 - 1484 (2016)

Reactions of 9-chloro-10,9-oxaboraphenanthrene (1) with the phenyl-, p-tolyl-, m-xylyl-, mesityl-, 2,4,6-tri-iso-propylphenyl-, 3,5-bis(trifluoromethyl)phenyl-, and pentafluorophenyl-Grignard reagents resulted in the formation of the corresponding oxaboraphenanthrene derivatives namely 9-phenyl- (2), 9-p-tolyl- (3), 9-(3,5-dimethylphenyl)- (9-m-xylyl-) (4), 9-mesityl- (5), 9-(2,4,6-tri-iso-propylphenyl)- (6), 9-(3,5-bis(trifluoromethyl)phenyl)- (7), and 9-(pentafluorophenyl)-10,9-oxaboraphenanthrene (8). 9-Trisyl- (9) and 9-supersilyl-10,9-oxaboraphenanthrene (10) were obtained selectively employing 1 and Li[C(SiMe3)3] or Na[SitBu3] as reactants. The compounds 4-9 were characterized by X-ray crystallography. The fluorescence measurements of 5-9 embedded in PMMA show emission bands with λmaxfrom 341 to 373 nm.

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