m-Kresolpurpur
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- CAS-Nr.
- 2303-01-7
- Bezeichnung:
- m-Kresolpurpur
- Englisch Name:
- Cresol Purple
- Synonyma:
- M-CRESOL PURPLE;Nsc 9607;BETZ 0420;CRESOL PURPLE;3-cresolpurple;m-Cresolpurpl;M-cresol violet;METACRESOL PURPLE;pourpredem-cresol;Cresol Purple, M-
- CBNumber:
- CB7722734
- Summenformel:
- C21H18O5S
- Molgewicht:
- 382.43
- MOL-Datei:
- 2303-01-7.mol
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m-Kresolpurpur Eigenschaften
- Schmelzpunkt:
- >250°C
- Siedepunkt:
- 577.5±50.0 °C(Predicted)
- Dichte
- 1.404±0.06 g/cm3(Predicted)
- chüttdichte
- 480kg/m3
- storage temp.
- room temp
- Löslichkeit
- Very slightly soluble in water, ethanol; soluble in methanol
- Aggregatzustand
- Liquid
- pka
- 1.51, 8.32(at 25℃)
- Farbe
- Dark green
- Säure-Base-Indikators(pH-Indikatoren)
- 1.2 (red) - 2.8 (yellow) and 7.4 (yellow) - 9.0 (purple)
- Wasserlöslichkeit
- Soluble in water and sodium hydroxide solution. Slightly soluble in alcohol.
- maximale Wellenlänge (λmax)
- 579nm, 371nm
- ε(Extinktionskoeffizient)
- ≥ 11000 at 295-301nm at 0.01g/L (0.01 G/L in 0.005 N NAOH in Methanol)
≥26000 at 578-584nm at 0.01g/L (in 0.005 N NAOH in Methanol)
≥8000 at 369-375nm at 0.01g/L (in 0.005 N NAOH in Methanol)
- Merck
- 14,2577
- BRN
- 350314
- Stabilität:
- Stable. Incompatible with strong oxidizing agents.
- Major Application
- Fuel cells, sensors, display device, falsification-proof security paper, inks, correction fluid, paints, detection of electrophilic gases, lubricants, cement products, packaging system, adhesive, cosmetics, food storage, determining glucose in dialysis solution, screening of cat diseases, detecting carbohydrates, oral hygiene products
- InChI
- 1S/C21H18O5S/c1-13-11-15(22)7-9-17(13)21(18-10-8-16(23)12-14(18)2)19-5-3-4-6-20(19)27(24,25)26-21/h3-12,22-23H,1-2H3
- InChIKey
- OLQIKGSZDTXODA-UHFFFAOYSA-N
- SMILES
- Cc1cc(O)ccc1\C(=C2/C=CC(=O)C=C2C)c3ccccc3S(O)(=O)=O
- EPA chemische Informationen
- Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl- (2303-01-7)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| S-Sätze: |
24/25 |
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| WGK Germany |
WGK 2 water endangering |
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| TSCA |
TSCA listed |
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| HS Code |
2934 99 90 |
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| Speicherklasse |
11 - Combustible Solids |
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| Bildanzeige (GHS) |
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| Alarmwort |
Warnung
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| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H302 |
Gesundheitsschädlich bei Verschlucken. |
Akute Toxizität oral |
Kategorie 4 |
Warnung |
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P264, P270, P301+P312, P330, P501 |
| H315 |
Verursacht Hautreizungen. |
Hautreizung |
Kategorie 2 |
Warnung |
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P264, P280, P302+P352, P321,P332+P313, P362 |
| H319 |
Verursacht schwere Augenreizung. |
Schwere Augenreizung |
Kategorie 2 |
Warnung |
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P264, P280, P305+P351+P338,P337+P313P |
| H335 |
Kann die Atemwege reizen. |
Spezifische Zielorgan-Toxizität (einmalige Exposition) |
Kategorie 3 (Atemwegsreizung) |
Warnung |
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| Sicherheit |
| P261 |
Einatmen von Staub vermeiden. |
| P305+P351+P338 |
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen. |
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m-Kresolpurpur Chemische Eigenschaften,Einsatz,Produktion Methoden
S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
green crystalline powder
Verwenden
m-Cresol Purple acts as a pH indicator dye. It plays an important role in spectrophotometric pH measurements. It operates in the pH ranges 1.2 - 2.8 (red to yellow) and 7.4 - 9.0 (yellow to violet). Further, it is employed to stain epithelial cells and proteins.
Biochem/physiol Actions
m-Cresol purple is a pH indicator. It changes from red (pH 1.2) to yellow (2.8) and yellow (7.4) to purple (9.0).
m-Kresolpurpur Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
m-Kresolpurpur Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 287)Lieferanten
2303-01-7(m-Kresolpurpur)Verwandte Suche:
- M-CRESOL PURPLE, INDICATOR GRADE
- M-CRESOL PURPLE FREE ACID
- M-CRESOL PURPLE INDICATOR
- Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis3-methyl-
- m-Cresolpurpl
- M-CRESOLSULFONPHTHALEIN
- M-CRESOLSULFONEPHTHALEIN
- METACRESOL PURPLE
- CRESOL PURPLE
- BETZ 0420
- 3-cresolpurple
- m-Cresol Purple sodium salt, 0.04% w/v aq. soln.
- Cresol Purple, M-
- m-CRESOL PURPLE (pH indicator) AR
- M-CRESOL PURPLE, INDICATOR GRADE, PURE
- 3,3-Bis(4-hydroxy-2-methylphenyl)-3H-2,1-benzoxathiole 1,1-dioxide
- m-Cresol Purple,pure,indicator grade
- Cresol purple solution 0.04 % pH
- M-Cresol Purple, indicator grade, pure 5GR
- M-CRESOL PURPLE INDICATOR 5 G
- M-cresol, 4,4′-(3h-2,1-benzoxathiol-3-ylidene)di-, S,s-dioxide
- O-toluenesulfonic Acid,α-hydroxy-α,α-bis(4-hydroxy-o-tolyl)-, Γ-sultone
- Nsc 9607
- 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(3-methylphenol)s,s-dioxide
- 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(m-cresol)s,s-dioxide
- cresolpurple(non-specificname)
- Phenol,4,4’-(3H-2,1-benzoxathiol-3-ylidene)bis(3-methyl-,S,S-dioxide
- phenol,4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis[3-methyl-,s,s-dioxide
- pourpredem-cresol
- 3,3-Bis(4-hydroxy-2-Methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
- M-cresol purple indicator solution
- Cresol Purple USP/EP/BP
- M-Cresol purple, indicator m-Cresol purple, indicator
- m-Cresol purple pH indicator solution
- m-Cresol purple indicator 1GM
- m-Cresol purple indicator 5GM
- m-Cresol Purple extrapure AR
- M-cresol violet
- m-Cresol purple, pH indicator dye
- Meta-CRESOL PURPLE INDICATOR
- m-Cresol Purple
- m-Cresol Purple (Technical Grade)
- m-Cresol purple: 3,3-bis(2-hydroxy-4-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
- M-CRESOL PURPLE
- 2303-01-7
- 2303-01-07
- 2303-10-7
- Indicator (pH)
- pH Indicators
- Sulfonephthalein
- Analytical Chemistry
- Indicator (pH)
- pH Indicators
- Organics
