trans-2,4,4',6-tetramethoxychalcone(24533-45-7) IR1
Product Nametrans-2,4,4',6-tetramethoxychalcone
CAS24533-45-7
Molecular FormulaC19H20O5
Molecular Weight328.3591
InChIInChI=1S/C19H20O5/c1-21-14-7-5-13(6-8-14)17(20)10-9-16-18(23-3)11-15(22-2)12-19(16)24-4/h5-12H,1-4H3/b10-9+
InChIKey NERJRIARSCJAFR-MDZDMXLPSA-N
SmilesC(=C/C1=C(OC)C=C(OC)C=C1OC)\C(C1=CC=C(OC)C=C1)=O
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MassMS-IW-1480 trans-2,4,4',6-tetramethoxychalcone C19H20O5 (Mass of molecular ion: 328)
Source Temperature: 200 °C Sample Temperature: 160 °C Direct, 75 eV
64.0 1.2 69.0 1.0 77.0 5.5 91.0 1.1 92.0 3.3 107.0 3.3 121.0 2.4 135.0 11.8 136.0 1.1 139.0 1.6 150.0 4.3 163.0 2.1 168.0 3.0 178.0 3.2 179.0 1.6 206.0 1.3 221.0 1.6 239.0 1.6 253.0 1.7 254.0 2.1 281.0 1.1 282.0 9.3 283.0 1.9 297.0 100.0 298.0 19.5 299.0 2.7 328.0 9.4 329.0 2.1
400 MHz in CDCl3
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1H NMR 399.65 MHz C19 H20 O5 0.038 g : 0.5 ml CDCl3 trans-2,4,4',6-tetramethoxychalcone 
Assign. Shift(ppm)
A 8.239 B 8.025 C 7.890 D 6.956 E 6.128 F 3.893 G 3.862 J 3.841 J(A,C)=15.8HZ
Hz ppm Int.3301.51 8.262 77 3285.77 8.222 96 3211.91 8.037 130 3209.84 8.032 48 3205.08 8.020 40 3203.00 8.015 143 3161.62 7.911 117 3145.75 7.872 126 2784.42 6.968 135 2782.35 6.962 48 2777.59 6.951 39 2775.51 6.945 136 2449.22 6.129 313 1556.15 3.894 1000 1550.42 3.880 23 1549.68 3.878 23 1543.58 3.863 596 1539.43 3.852 22 1535.28 3.842 574
in CDCl3
liquid film
