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Methyl Green

CAS No.
82-94-0
Chemical Name:
Methyl Green
Synonyms
CI 42585;LIGHT GREEN;PARIS GREEN;CI NO 42585;CI NO 42590;METHYL GREEN;DOUBLE GREEN;BASIC BLUE 20;DOUBLE GREEN SF;CI BASIC BLUE 20
CBNumber:
CB0389594
Molecular Formula:
C26H33ClN3+
Molecular Weight:
423.02
MDL Number:
MFCD00011879
MOL File:
82-94-0.mol
Last updated:2023-06-08 17:06:34

Methyl Green Properties

Water Solubility Soluble in water
solubility Methanol (Slightly), Water (Slightly)
form Liquid
Colour Index 42585
color Clear blue-green
PH Range 0.1(yellow)-2.3(blue)
Stability Hygroscopic
CAS DataBase Reference 82-94-0
EWG's Food Scores 1
FDA UNII 6P7U4T9BXA
EPA Substance Registry System C.I. Basic Blue 20 (82-94-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H335-H315-H319-H413
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
HS Code  3204.13.8000

Methyl Green price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 198080 Methyl Green zinc chloride salt, certified by the Biological Stain Commission, Dye content 85?% 82-94-0 10g $130 2021-12-16 Buy
Sigma-Aldrich 198080 Methyl Green zinc chloride salt, certified by the Biological Stain Commission, Dye content 85?% 82-94-0 50g $660 2021-12-16 Buy
TCI Chemical M0498 Methyl Green 82-94-0 25g $214 2024-03-01 Buy
TRC B400378 [4-[[4-(Dimethylamino)phenyl]-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-trimethylazaniumDichloride 82-94-0 250mg $45 2021-12-16 Buy
Chem-Impex 38658 Methylgreen,CI42585 82-94-0 25G $234.12 2021-12-16 Buy
Product number Packaging Price Buy
198080 10g $130 Buy
198080 50g $660 Buy
M0498 25g $214 Buy
B400378 250mg $45 Buy
38658 25G $234.12 Buy

Methyl Green Chemical Properties,Uses,Production

Description

Methyl Green is a DNA stain used as a tracking dye in acid buffers for electrophoresis. It helps differentiate bacteria and is also a tissue stain for nucleoli and mitochondria in tissues. It is used with Bismarck Brown frequently.

Uses

Methyl Green powder dye is used in various staining methods in microscopy. It is also used with Pyronine Y dye for one stage DNA (green) and RNA (red) staining method. It is also used as a counterstain with other reactions, such as demonstration of enzymatic activity and for mitochondrial staining according to Altmann. Methyl green solution is a suitable counterstain for chloroacetate esterase, nonspecific esterase, alkaline phosphatase, peroxidase, naphthol AS acetate esterase, and acid phosphatase.

Preparation

chlorine methane and (C.I.Basic Violet 1, C.I. 42535) reaction

Definition

ChEBI: Methylene green is an organic chloride salt having 3,7-bis(dimethylamino)-4-nitrophenothiazin-5-ium as the counterion. It stains nuclei green and is sometimes used as a counterstain to red or purple primary stains. It has a role as a fluorochrome and a histological dye. It contains a 3,7-bis(dimethylamino)-4-nitrophenothiazin-5-ium.

Properties and Applications

green light blue. Soluble in water for blue light green, not soluble in ethanol and e alcohol. The strong sulfuric acid to red light yellow, yellow green for diluted. Dyes to join sodium hydroxide solution to colorless.

Standard( Cotton ) Light Fastness Persperation Fastness Ironing Fastness Soaping
Fading Stain Fading Stain Fading Stain
C 1 2

Purification Methods

Crystallise the dye from hot water. [Beilstein 13 IV 2286.]

Methyl Green Preparation Products And Raw materials

Raw materials

Preparation Products

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PARIS GREEN n,n-trimethyl-n-1-ylidene]methyl]-dichloride METHYL GREEN METHYL GREEN ZINC CHLORIDE DOUBLE SALT Benzenaminium, 4-4-(dimethylamino)phenyl4-(dimethyliminio)-2,5-cyclohexadien-1-ylidenemethyl-N,N,N-trimethyl-, dichloride Methyl Green Dichloride HEPTAMETHYL-P-ROSANILINE CHLORIDE GLYCEROL /METHYL GREEN LIGHT GREEN CI BASIC BLUE 20 CI 42585 CI NO 42585 CI NO 42590 DOUBLE GREEN DOUBLE GREEN SF BASIC BLUE 20 4-[[4-(Dimethylamino)phenyl][4-(dimethyliminio)cyclohexa-2,5-dien-1-ylidene]methyl]-N,N,N-trimethylanilinium dichloride [4-[(4-dimethylaminophenyl)-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-trimethylazanium dichloride [4-[(4-dimethylaminophenyl)-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-trimethyl-azanium dichloride [4-[(4-dimethylaminophenyl)-(4-dimethyliminiocyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-trimethyl-ammonium dichloride Methyl Green zinc ch C.I. 42585 or 42590 4-{[4-(DiMethylaMino)phenyl][4-(diMethyliMinio)-2,5-cyclohexadien-1-ylidene]Methyl}-N,N,N-triMethylaniliniuM dichloride C.I.Basic Blue 20:C.I.42585 Methyl green indicator (0.1-2.0) Basic blue 20 (C.l. 42585) 82-94-0 C26H33N32Cl