The 3-Cyano-7-hydroxycoumarin with the cas number 19088-73-4, is also called 7-hydroxy-2-oxo-2H-chromene-3-carbonitrile .The properties of this chemical are: (1)#H bond acceptors:  4  ; (2)#H bond donors:  1  ; (3)#Freely Rotating Bonds:  1  ; (4)Polar Surface Area:  59.32 Å²  ; (5)Index of Refraction:  1.667  ; (6)Molar Refractivity:  46.23 cm³  ; (7)Molar Volume:  124.1 cm³  ; (8)Polarizability:  18.32×10^-24cm³  ; (9)Surface Tension:  76 dyne/cm ; (10)Enthalpy of Vaporization:  71.98 kJ/mol   ; (11)Vapour Pressure:  3.13E-08 mmHg at 25°C .

When you are using this chemical, please be cautious about it as the following:(1)Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin; (2)In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; (3)Wear suitable protective clothing.

This product can be supplied by the following suppliers: (1)Capot Chemical Co., Ltd.; (2)Atomax Chemicals Co., Ltd.; (3)Langway Chemical Shanghai Co., Ltd.; (4)Guangzhou WeiBo Chemical Co., Ltd.; (5)Advanced Technology & Industrial Co., Ltd.; (6)CARBONE SCIENTIFIC CO.,LTD.; (7)INDOFINE Chemical Company, Inc.; (8)3B Scientific Corporation .

You can still convert the following datas into molecular structure :
1.N#C\C1=C\c2c(OC1=O)cc(O)cc2
2.InChI=1/C10H5NO3/c11-5-7-3-6-1-2-8(12)4-9(6)14-10(7)13/h1-4,12H