| Identification | Back Directory | [Name]
2'-anilino-6'-[ethyl(3-methylbutyl)amino]-3'-methylspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one | [CAS]
70516-41-5 | [Synonyms]
S-205
WinCon-205
S 205 (dye)
S 205 Black
Yamada S 205
R-401(S-205)
3-N-Isoamyl-N-ethylamino-6-methyl-7-anilinofluoran
2-Anilino-6-(N-ethyl-N-isoamylamino)-3-methylfluoran
3-(N-Ethyl-N-Isopentylamino)-6-Methyl-7-Anilinofluoran
3-(N-Ethyl-N-isoaMylaMino)-6-Methyl-7-phenylaMinofluoran
6'-(N-Isoamyl-N-ethylamino)-3'-methyl-2'-phenylaminofluoran
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'-methyl-1-spiro[isobenzofuran-3,9'-xanthene]one
6'-(Ethyl(isopentyl)amino)-3'-methyl-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
6'-(ETHYL-(3-METHYLBUTYL)AMINO)-3'-METHYL-2'-(PHENYLAMINO)SPIRO[2-BENZOFURAN-3,9'-XANTHENE]-1-ONE
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)-Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one
Spiro[isobenzofuran-1(3H),9'-[ 9H]xanthen]-3-one, 6'-[ethyl(3-methylbutyl)amino]-3'-m ethyl-2'-(phenylamino)- | [EINECS(EC#)]
274-641-1 | [Molecular Formula]
C34H34N2O3 | [MDL Number]
MFCD11044531 | [MOL File]
70516-41-5.mol | [Molecular Weight]
518.65 |
| Chemical Properties | Back Directory | [Melting point ]
166-168℃ | [Boiling point ]
692.2±55.0 °C(Predicted) | [density ]
1.25±0.1 g/cm3(Predicted) | [vapor pressure ]
0Pa at 25℃ | [storage temp. ]
Keep in dark place,Inert atmosphere,2-8°C | [pka]
5.24±0.20(Predicted) | [Water Solubility ]
100μg/L | [LogP]
4.2 at 20℃ | [EPA Substance Registry System]
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| Hazard Information | Back Directory | [Chemical Properties]
6'-(Ethyl-(3-methylbutyl)amino)-3'-methyl-2'-(phenylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one is an excellent coupler. The fluoran compound has two different crystal forms, one High melting point crystal, its melting point is in the range of 164-168℃; a low melting point crystal, its melting point is in the range of 145-156℃. Among these two different crystal forms, as a coupler in thermal or pressure-sensitive recording materials, the high-melting-point crystalline compound has the advantages of fast color development and not easy to fade. 
| [Application]
6'-(Ethyl-(3-methylbutyl)amino)-3'-methyl-2'-(phenylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one is a kind of black fluoran thermopressure-sensitive dye, which is based on xanthene type. compound of the parent structure. It is usually a colorless or light-colored crystal, and when it comes into contact with a color developer (acid clay, bisphenol A, POB, etc.), it develops color with the cracking of the lactone ring in the molecule. | [Flammability and Explosibility]
Nonflammable | [Synthesis]
6'-(Ethyl-(3-methylbutyl)amino)-3'-methyl-2'-(phenylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one can be prepared from 2-[4-(N-ethyl-N-isopentyl)amino-2-hydroxy-benzoyl]sodium benzoate and 4-methoxy-2-methyldiphenylamine in concentrated sulfuric acid, hydrogen Reaction under the action of sodium. |
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