4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on
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- CAS-Nr.
- 603-45-2
- Bezeichnung:
- 4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on
- Englisch Name:
- ROSOLIC ACID
- Synonyma:
- AURIN;RosoL;AURINE;CORALLIN;CI 43800;AURIN GR;Nsc 7805;Aurin 555;Rosolic aci;CI NO 43800
- CBNumber:
- CB0296269
- Summenformel:
- C19H14O3
- Molgewicht:
- 290.31
- MOL-Datei:
- 603-45-2.mol
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4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on Eigenschaften
- Schmelzpunkt:
- 309°C (decompose)
- Siedepunkt:
- 372.4°C (rough estimate)
- Dichte
- 1.2497 (rough estimate)
- Brechungsindex
- 1.4200 (estimate)
- storage temp.
- Store at room temperature.
- Löslichkeit
- Practically insoluble in water, benzene; freely soluble in ethanol
- Aggregatzustand
- Crystalline Powder
- Colour Index
- 43800
- pka
- 6.98(at 25℃)
- Farbe
- Red-brown to brownish-red
- Säure-Base-Indikators(pH-Indikatoren)
- 6.8(YELLOW)--8.2(RED)
- Wasserlöslichkeit
- Soluble in alcohol, sodium hydroxide, potassium hydroxide and strong acids. Insoluble in water.
- maximale Wellenlänge (λmax)
- 534.6nm, 479.5nm, 482nm
- Merck
- 14,881
- BRN
- 2055205
- Stabilität:
- Stable. Incompatible with strong oxidizing agents.
- Major Application
- electrorheological materials, films patterning, antireflective coatings, thermochromic materials, photoresists, film patterning, recording materials, lithium battery, semiconductors, printing materials, inks, corrosion inhibitors, adhesives, drugs, detecting viable cells, treatment of Alzheimer’s disease
- CAS Datenbank
- 603-45-2
- EPA chemische Informationen
- 2,5-Cyclohexadien-1-one, 4-[bis(4-hydroxyphenyl)methylene]- (603-45-2)
4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R36/38:Reizt die Augen und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
red crystals or powder
Verwenden
Rosolic acid is used as a pH indicator in the range from 5.0 to 6.8. It acts as an intermediate in the manufacturing dyes. It is involved in the activation of heme oxygenase and in the inhibition of DNA fragmentation. It finds application in the selective isolation of coliform bacteria.
läuterung methode
It forms green crystals with a metallic luster, but the colour depends on the solvent used. When recrystallised from brine (saturated aqueous NaCl) acidified with HCl, it forms red needles, but when recrystallised from EtO/AcOH, the crystals have a beetle iridescent green colour. It has been recrystallised from Me2CO (although it dissolves slowly), methyl ethyl ketone, 80-95% AcOH and from AcOH/*C6H6. An aqueous KOH solution is golden yellow, and a 70% H2SO4 solution is deep red in colour. An alternative purification is to dissolve this triphenylmethane dye in 1.5% of aqueous NH3, filter, and heat to 70-80o, then acidify with dilute AcOH by adding it slowly with vigorous stirring, whereby the aurin separates as a brick-red powder or as purplish crystals depending on the temperature and period of heating. Filter off the solid, wash it with H2O and a little dilute AcOH, then H2O again. Stir this solid with Et2O to remove any ketones and allow it to stand overnight in the Et2O, then filter and dry it in air then in a vacuum. [Gomberg & Snow J Am Chem Soc 47 202 1925, Baines & Driver J Chem Soc 123 1216 1923, UV: Burawoy Chem Ber 64 462 1941, Beilstein 8 IV 2646.]
4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 221)Lieferanten
603-45-2(4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on)Verwandte Suche:
Ammoniumvanadat
Eisendichlorid
Natriumthiocyanat
Benzol-1,2,4-tricarbonsure-1,2-anhydrid
Phenolphthalein
Kaliumdichromat
Triammonium-5,5'-(3-carboxylato-4-oxocyclohexa-2,5-dienylidenmethylen)disalicylat
4-[Bis(p-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on
5,5'-(3-Carboxy-4-oxocyclohexa-2,5-dienylidenmethylen)disalicylsure
Trinatrium-5,5'-(3-carboxylato-4-oxocyclohexa-2,5-dienylidenmethylen)di(salicylat)
4-[(4-Hydroxy-3-methylphenyl)(4-hydroxyphenyl)methylen]cyclohexa-2,5-dien-1-on
- 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone, Aurin
- 4,4'-Dihydroxyfuchsone
- Corallin Spirit Soluble
- Spirit Aurin
- Rosolic acid (CI x 43800)
- 4-(p,p′-Dihydroxybenzhydrylidine)-2,5-cyclohexadien-1-one
- Corallin
Aurin
p-Rosolic Acid
- Rosolic aci
- 4-(bis(4-hydroxyphenyl)Methylene)cyclohexa-2,5-dienone
- PARAROSOLIC ACID
- P-ROSOLIC ACID
- 4-[bis(4-hydroxyphenyl)methylene]-5-cyclohexadien-1-one
- CORALLIN
- CORALLIN RED
- CORALLIN YELLOW
- CI NO 43800
- CI 43800
- LABOTEST-BB LT00847601
- AURIN
- AURINE
- 4-(Bis(4-hydroxyphenyl)
- cyclohexa-2,5-dienone
- 4-[BIS(4-HYDROXYPHENYL)METHYLENE]-2,5-CYCLOHEXADIEN-1-ONE
- 4-[BIS(4-HYDROXYPHENYL)METHYLENE]-2,5-CYCLOHEXADIENONE
- 4-[BIS-(P-HYDROXYPHENYL)METHYLENE]-2,5-CYCLO-HEXADIEN-1-ONE
- ROSOLIC ACID INDICATOR
- ROSOLIC ACID (C.I. 43800)
- ROSOLIC ACID PRACTICAL GRADE
- ROSOLIC ACID C.I. 43800 INDICATOR FOR MICROSCOPY
- AURIN FOR MICROSCOPY (Rosolic Acid) C.I. No 43800
- Para-ROSOLIC ACID INDICATOR
- AURIN (C.I. 43800)
- 4-[bis(p-hydroxyphenyl)methylene]cyclohexa-2,5-dien-1-one
- Roseolic acid
- AURIN GR
- RHODIZONIC ACID Dihydrate(P)
- 2,5-cyclohexadien-1-one, 4-[bis(p-hydroxyphenyl)methylene]-
- 4-(p,p′-dihydroxybenzhydrylidene)-2,5-cyclohexadien-1-one
- 4-[bis(p-hydroxy- Aphenyl)methylene]-2,5-cyclohexadien-1-one
- Aurin 555
- Nsc 7805
- Rosalic Acid
- Spirit Aurine
- 2,5-Cyclohexadien-1-one, 4-bis(4-hydroxyphenyl)methylene-
- Aurine、Pararosolic acid
- p-Rosolic acid, indicator
- Aurin (p-rosolic acid)
- RosoL
- 4-[bis(4-hydroxyphenyl)methylidene]cyclohexa-2,5-dien-1-one
- Rosolic acid pH indicator solution
- ROSOLIC ACID USP/EP/BP
- Rosonic acid, indicator
- TIANFUCHEM--High purity ROSOLIC ACID factory price
- p-ROSOLIC ACID INDICATOR For Microscopy
- 4-(Bis(4-hydroxyphenyl)methylene)cyclohexa-2,5-dien-1-one
- AURIN (p-ROSALIC ACID)
- 603-45-2
- C19H14O3
