Solvent Green 7(CAS#6358-69-6)

Chemical Property:

Molecular Formula	C16H7Na3O10S3
Molar Mass	524.39
Density	2.15
Melting Point	62-63.5°C(lit.)
Boling Point	171-178°C10mm Hg(lit.)
Flash Point	250 °C
Water Solubility	300 g/L (25 ºC)
Solubility	methanol: 0.1g/mL, clear
Vapor Presure	0Pa at 25℃
Appearance	Powder
Color	yellow
Maximum wavelength(λmax)	['403 nm (Buffer pH 4.0); 454 nm (Buffer pH 9.0)']
Merck	7954
BRN	4107272
pKa	7.3, (at 22℃)
Storage Condition	Keep in dark place,Inert atmosphere,Room temperature
MDL	MFCD00037575
Use	Mainly used for paint, plastic products and other coloring
In vitro study	Pyranine is capable of discriminating ranges of cations from the Cu + ion, even in competing environment. Pyranine displays a rapid fluorescence response (t 1/2 =1.66 min) towards the Cu + ion, and the micromolar detection limit enables the detection of the ion in environmental samples. The observed stoichiometry of complexation between Pyranine and Cu + is 2:1. The pH-sensitive fluorescent indicator Pyranine is studied to determine its usefulness as probes for the living cornea and anterior chamber. Adequate concentrations are reached in the cornea and anterior chamber after topical administration; measurements can be made by fluorophotometry for many hours. The pH is calculated by measuring the ratio of fluorescent intensity at two excitation wavelengths, I463/I404, a measurement which is dependent on pH but independent of the concentration of the fluorophore and other variables which can alter the intensity. In the rabbit eye, Pyranine in the cornea and anterior chamber is observed to undergo easily measurable changes in fluorescent ratios associated with lid closure and contact lens wear, indicating its sensitivity to mild changes in pH.

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Product Detail

Product Tags

Risk Codes	36/37/38 – Irritating to eyes, respiratory system and skin.
Safety Description	S36/37 – Wear suitable protective clothing and gloves. S37/39 – Wear suitable gloves and eye/face protection S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing.
WGK Germany	3
RTECS	UR2700000
TSCA	Yes
HS Code	29089990

Introduction

Solvent Green 7 is an organic dye, also known as Laban Green 5G, Acid Green 7, Fine Acid Green 7, etc. The following is an introduction to the properties, uses, preparation methods and safety information of solvent green 7: Properties:- Appearance: Solvent green 7 is a dark green crystalline powder. – Solubility: Soluble in water, ethanol and ether organic solvents. – Stability: Stable under light and good heat resistance. Uses:- Solvent green 7 is mainly used as a dye and indicator, and is commonly used in dyeing and printing in textile, leather, plastic and other industries. – It can also be used as an indicator in chemical laboratories for pH determination and acid-base titration, among other things. Preparation method:- There are many synthesis methods of solvent green 7, and a general method is to react with phenol by aniline under acidic conditions, and then carry out sulfonation and diazotization reaction to obtain the target product. Safety Information:- Avoid inhaling its dust during operation and ensure good ventilation. – During storage, solvent green 7 should be kept in a dry, cool, airtight container, away from ignition and oxidants. – The emission of solvent green 7 into the environment shall comply with the limits of relevant laws and regulations. When disposing of waste, please dispose of it in accordance with local regulations.

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