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Methylene Blue trihydrate

Methylene Blue trihydrate Struktur
7220-79-3
CAS-Nr.
7220-79-3
Englisch Name:
Methylene Blue trihydrate
Synonyma:
METHYLENE BLUE HYDRATE;Methylene Blue, CP;METHYLTHIONINE CHLORIDE;Methylene Blue trihydratee;Methyltltioninium Chloride;Methylthioninium Chloride Trihydrate;SJ-09;CI 52015;CI NO 52015;ue trihydrate
CBNumber:
CB3748860
Summenformel:
C16H20ClN3OS
Molgewicht:
337.87
MOL-Datei:
7220-79-3.mol

Methylene Blue trihydrate Eigenschaften

Schmelzpunkt:
190 °C (dec.)(lit.)
Dichte
0.98 g/mL at 25 °C
Flammpunkt:
14 °C
storage temp. 
no restrictions.
L?slichkeit
Soluble in water, chloroform; sparingly soluble in ethanol
Colour Index 
52015
Aggregatzustand
Solid
pka
2.6, 11.2(at 25℃)
Farbe
Green
Wasserl?slichkeit
4 g/100 mL
maximale Wellenl?nge (λmax)
668 nm, 609 nm
Merck 
13,6085
Stabilit?t:
Stable. Incompatible with bases, reducing agents, strong oxidizing agents.
Biologische Anwendungen
Diagnosis of tauopathy,Alzheimer’s disease (AD),Pick’s disease; treating prophylaxis; dental materials
InChIKey
YAFGUSOAMIMROI-UHFFFAOYSA-M
CAS Datenbank
7220-79-3(CAS DataBase Reference)
IARC
3 (Vol. 108) 2016
EPA chemische Informationen
Methylene blue trihydrate (7220-79-3)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn,F
R-S?tze: 22-36/37/38-11
S-S?tze: 26-36-24/25-16-7
RIDADR  UN 1170 3/PG 2
WGK Germany  3
RTECS-Nr. SP5740000
TSCA  Yes
HS Code  32129000
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P270 Bei Gebrauch nicht essen, trinken oder rauchen.
P301+P312 BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P501 Inhalt/Beh?lter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Methylene Blue trihydrate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R22:Gesundheitssch?dlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R11:Leichtentzündlich.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S7:Beh?lter dicht geschlossen halten.

Chemische Eigenschaften

Methylene Blue trihydrate is a dark green crystalline powder that has a bronze-like luster. When dissolved in water or alcohol, it creates a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It can also inhibit guanylate cyclase and has been used to treat cyanide poisoning and lower levels of methemoglobin.

Verwenden

Methylene Blue trihydrate finds many uses in biology and chemistry. It acts as a GCS inhibitor, biological stain and redox indicator. It inhibits tau filament formation. Further, it is reported to bind to the M2 subtype of muscarinic receptors in rat cardiac myocytes and thus exhibit antimuscarinic effects on IK, ACh and ICa. It also inhibits endothelium-dependent relaxation of isolated blood vessels.

synthetische

Methylene blue is synthesized commercially by oxidation of N,N-dimethyl-phenylenediamine with sodium dichromate (Na2Cr2O7) in the presence of sodium thiosulfate (Na2S2O3), followed by further oxidation in the presence of N,N-dimethylaniline (NTP, 2008). Methylene blue hydrochloride is isolated by addition of 30% hydrochloric acid and of a saturated common salt solution to the dye solution; after filtration, the product is washed with a 2% common salt solution. Instead of sodium dichromate, manganese dioxide, and catalytic amounts of copper sulfate can be used for the oxidation (Berneth, 2008).
Methylene blue of high purity can be obtained by chloroform extraction of impurities from solutions of raw dye in borate buffer at pH 9.5–10, followed by acidification of the aqueous solution and isolation of the dye (Berneth, 2008).
IARC Monographs

Allgemeine Beschreibung

Methylene blue trihydrate appears as odorless or almost odorless dark green crystals with bronze luster or dark green crystalline powder. pH (1% solution in water) 3 to 4.5. (NTP, 1992)

Air & Water Reaktionen

Hygroscopic. Water soluble. Gives a blue solution in water.

Reaktivit?t anzeigen

Methylene Blue trihydrate is incompatible with strong oxidizing agents, caustics, alkali metal iodides and reducing agents. Also incompatible with dichromates. Methylene Blue trihydrate forms double salts with many inorganic salts. Is bleached reversibly by (zinc + hydrochloric acid) or sodium hydrosulfite. In aqueous solution, Methylene Blue trihydrate is decolorized by zinc dust and dilute sulfuric acid, but the color is restored upon exposure to air and more rapidly upon addition of ammonium hydroxide.

Brandgefahr

Flash point data for Methylene Blue trihydrate are not available; however, Methylene Blue trihydrate is probably combustible.

Methylene Blue trihydrate Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Methylene Blue trihydrate Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 489)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Wuhan Fortuna Chemical Co.,Ltd
+8618007136271
hk@fortunachem.com China 5998 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
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+undefined-27-86652399 +undefined13627115097
market02@senwayer.com China 904 58
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+86-17331933971 +86-17331933971
deasea125996@gmail.com China 2472 58
Shaanxi Haibo Biotechnology Co., Ltd
+undefined18602966907
qinhe02@xaltbio.com China 997 58
Hebei Saisier Technology Co., LTD
+86-18400010335 +86-18034520335
admin@hbsaisier.cn China 1015 58
Hebei Longbang Technology Co., LTD
+86-18633929156 +86-18633929156
admin@hblongbang.com China 941 58
Watson Biotechnology Co.,Ltd
+86-18186686046 +86-18186686046
sales01@watsonbiotech.cn China 5841 58
HebeiShuoshengImportandExportco.,Ltd
+86-18532138899 +86-18532138899
L18532138899@163.com China 939 58
Hebei Zhuanglai Chemical Trading Co Ltd
+86-16264648883 +86-16264648883
niki@zlchemi.com China 2691 58

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