CAS No.2866-43-5,Fluorescent Brightener 185 Suppliers

Detail of "2866-43-5"

CAS Number:

2866-43-5

Name:

Fluorescent Brightener 185

Molecular Structure:

Formula:

C₁₈H₁₀N₂O₂S

Molecular Weight:

318.35

Deleted CAS:

12224-41-8,12224-46-3,73201-83-9,75026-70-9

Synonyms:

2,2'-(2,5-thiophenediyl)bis-benzoxazole;2,5-di(benzoxazol-2-yl)thiophene;2,5-Bis(2-benzoxazolyl)thiophene;C.I. Fluorescent Brightener 172;c.i. 515240;2,2'-thiophene-2,5-diylbis(benzoxazole);Benzoxazole, 2,2-(2,5-thiophenediyl)bis-;

EINECS:

220-685-1

Density:

1.385 g/cm³

Melting Point:

216-220 °C

Boiling Point:

466.4 °C at 760 mmHg

Flash Point:

235.9 °C

Solubility:

0.00954 mg/L at 25°C in water

Appearance:

light yellow crystalline or bright blue fluorescence powder

Reference

2,5-Bis(benzoxazolyl) thiophene compounds: 2,5-Bis(benzoxazolyl) thiophene compounds. Guglielmetti, Leonardo (Ciba-Geigy A.-G., Switz.). Ger. Offen. DE 2729986 12 Jan 1978, 45 pp. (German). (Germany). 40094-65-3 which is the cas registry number is also used here. CODEN: GWXXBX. CLASS: IC: C07D413-14. PRIORITY: CH 76-8574 5 Jul 1976. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) 2,5-Bis(2-benzoxazolyl)thiophene derivs. I (all rings may be substituted), used as fluorescent whiteners, are manuf. by condensing a disulfide II (all rings may be substituted) with an a,b-dicarbonyl compd. For example, glyoxal hydrate trimer [40094-65-3] and II [66000-36-0] in Me2SO were added to a methanolic NaOMe soln. and kept at 0° for 4 h to give I(unsubstituted) [2866-43-5]. .

Heavy-duty diesel emissions as a function of alternate fuels: Heavy-duty diesel emissions as a function of alternate fuels. Ullman, T. L.; Hare, C. T. (Southwest Res. Inst., San Antonio, TX, USA). Report, EPA-460/3-83-004; Order No. PB84-120716, 165 pp. Avail. NTIS From: Gov. Rep. Announce. Index (U. S.) 1984, 84(3), 189 (English) 1983. DOCUMENT TYPE: Report CA Section: 59 (Air Pollution and Industrial Hygiene) Section cross-reference(s): 51 Exhaust emissions from a Mack EM6-300 heavy-duty diesel engine were characterized with 5 different fuels during transient and steady-state operation. A control fuel (Phillips D-2) was used for baseline emissions and as a base stock in 3 alternate fuel blends contg. middle distillates or used lubricating oil. The 5th fuel tested was neat soybean oil, heated to 145°. Emission measurements included hydrocarbons, CO, CO2, NOx, visible smoke, particulate, aldehydes, odor, phenols, sulfate, element compn., particle sizing, SOF [2866-43-5], SOF b.p. distribution, benzo[a]pyrene [50-32-8], Ames bioassay, and high performance liq. chromatog. fractionation. Hydrocarbons, CO, NOx, and particulate emissions were similar for this engine on all fuels tested with exception of higher particulates for the soybean oil and higher NOx for a blend.

Detail of "2866-43-5"

Fluorescent Brightener 185

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CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

CAS No.2866-43-5 Fluorescent Brightener 185

Reference