Name | 2'-anilino-6'-[ethyl(3-methylbutyl)amino]-3'-methylspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one |
Synonyms | S-205 3-N-Isoamyl-N-ethylamino-6-methyl-7-anilinofluoran 3-(N-Ethyl-N-Isopentylamino)-6-Methyl-7-Anilinofluoran 4-[3-[ethyl(isopentyl)amino]phenoxy]-2-methyl-N-phenyl-aniline WinCon-205 (3-(N-ethyl-N-isopentylaMino)-6-Methyl-7-anilinofluoran 2'-Anilino-6'-(N-ethylisopentylamino)-3'-methylspiro[phthalide-3,9'-[9H]xanthene] 2'-Anilino-6'-(N-ethyl-N-isopentylamino)-3'-methylspiro[phthalide-3,9'-[9H]xanthene] 2'-anilino-6'-[ethyl(3-methylbutyl)amino]-3'-methylspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one 6'-[ethyl(3-methylbutyl)amino]-3'-methyl-2'-(phenylamino)-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one 6'-[ethyl(3-methylbutyl)amino]-3'-methyl-2'-(phenylamino)-Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one |
CAS | 70516-41-5 |
EINECS | 2746411 |
InChI | InChI=1/C26H32N2O/c1-5-28(17-16-20(2)3)23-12-9-13-24(19-23)29-25-14-15-26(21(4)18-25)27-22-10-7-6-8-11-22/h6-15,18-20,27H,5,16-17H2,1-4H3 |
Molecular Formula | C34H35N2O3 |
Molar Mass | 519.6533 |
Density | 1.25±0.1 g/cm3(Predicted) |
Melting Point | 166-168℃ |
Boling Point | 692.2±55.0 °C(Predicted) |
Flash Point | 267.5°C |
Water Solubility | 100μg/L |
Vapor Presure | 0Pa at 25℃ |
Appearance | White powder |
pKa | 5.24±0.20(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
Refractive Index | 1.6 |
Physical and Chemical Properties | Off-white crystals |
Use | For heat (pressure) sensitive paper coupler |
LogP | 4.2 at 20℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | 3-n-isoamyl-N-ethylamino-6-methyl-7-phenylaminofluorane is a color Former with excellent performance, the fluorane compound has two different crystal forms, a high melting point crystal with a melting point in the range of 164~168 deg C; A low melting point Crystal, its melting point ranges from 145 to 156 °c. Among these two different crystal forms, the high-melting-point crystalline compound has an advantage of being fast in color development and less susceptible to color fading as a color former in a thermal or pressure-sensitive recording material. |
preparation | A preparation method of high melting point 3-n-isopentyl-n-ethylamino-6-methyl-7-phenylaminofluorane, the melting point of the prepared 3-(N-ethyl-N-isoamyl) amino -6-methyl -7-phenylamine is in the range of 164~168 ℃, in this example, 36.5g of 2-[4-(N-ethyl-N-isoamyl) sodium amino-2-hydroxy-benzoyl] benzoate and 21.3g of 4-methoxy-2-methyldiphenylamine are dissolved in of concentrated sulfuric acid at 20 °c and incubated with constant stirring for 20 hours, after completion of the reaction, the reaction mixture was added to 1L of ice water, filtered and washed thoroughly with water; The resulting condensate was added to 500ml of water with constant stirring, adding liquid alkali to neutralize excess acid, and then adding 16g of sodium hydroxide, the system is alkaline; Under constant stirring, slowly warming up to the end of the reaction; Filtering, washing with a large amount of water, drying; the obtained crude product was recrystallized from toluene to obtain 39.5g of 3-n-isoamyl-n-ethylamino-6-methyl-7-phenylaminofluorane in a yield of 76.2%. |
Application | 3-n-isopentyl-n-ethylamino-6-methyl-7-phenylaminofluorane is a kind of black fluorane thermal pressure sensitive dye, the black fluorescence type of thermo-sensitive dye is a compound with the parent structure of the Oxo-anthracene type. It is usually colorless or light-colored crystals, which, when contacted with a developer (acidic clay, bisphenol A,POB, etc.), develop color as the lactone ring within the molecule cleaves. |
Use | for hot (pressure) sensitive paper coupler |