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Methylene blue

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Identification
Molecular formula
C16H18N3SCl
CAS number
61-73-4
IUPAC name
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethyl-ammonium;chloride
State
State

Methylene blue is typically found in a solid state at room temperature. It is commonly distributed as a powder, which can be easily dissolved in water to create its characteristic blue-colored solution. This solid state allows for easy handling and storage.

Melting point (Celsius)
100.00
Melting point (Kelvin)
373.15
Boiling point (Celsius)
388.36
Boiling point (Kelvin)
661.51
General information
Molecular weight
319.85g/mol
Molar mass
319.8500g/mol
Density
1.1109g/cm3
Appearence

Methylene blue appears as a dark green crystalline powder. When dissolved in water, it forms a deep blue solution, which is characteristic of this compound. It is known for its distinctive and vibrant color and is often used as a dye or stain in various applications.

Comment on solubility

Solubility of [7-(dimethylamino)phenothiazin-3-ylidene]-dimethyl-ammonium;chloride

The compound [7-(dimethylamino)phenothiazin-3-ylidene]-dimethyl-ammonium;chloride, with the formula C16H18N3SCl, exhibits notable solubility characteristics that are essential in various applications. Understanding its solubility is crucial for predicting behavior in different environments. Here are some key points about its solubility:

  • Aqueous Solubility: This compound is generally soluble in water due to the presence of the chloride ion, which enhances its interaction with polar solvents.
  • Effect of pH: The solubility can be influenced by pH levels; it is advisable to test its solubility across a range of pH environments to optimize its utility.
  • Solvent Compatibility: It may also dissolve well in organic solvents like methanol or ethanol, providing flexibility in formulation and use.
  • Temperature Dependence: Like many chemical compounds, solubility can vary with temperature; generally, increased temperatures lead to increased solubility.

In summary, the solubility profile of [7-(dimethylamino)phenothiazin-3-ylidene]-dimethyl-ammonium;chloride underscores its potential utility across various chemical applications. Understanding these solubility factors can greatly enhance the effectiveness of this compound in different formulations.

Interesting facts

Interesting Facts about [7-(Dimethylamino)phenothiazin-3-ylidene]-dimethyl-ammonium;chloride

This compound, known as a quaternary ammonium salt, is a fascinating member of the phenothiazine family. Its unique structure combines both organic and inorganic components, making it a useful compound in various applications. Here are some intriguing aspects:

  • Pharmaceutical Relevance: The compound's phenothiazine core has been widely researched for its potential therapeutic properties, particularly in the treatment of psychiatric disorders and as an antipsychotic agent.
  • Antimicrobial Activity: Numerous studies indicate that phenothiazine derivatives exhibit antimicrobial properties, which can be beneficial in developing new antiseptics.
  • Fluorescent Properties: Due to the presence of specific chromophores, this compound shows interesting fluorescent properties, making it useful in biological imaging and assays.
  • Applications in Dyes: With its vivid colorimetric properties, this compound has potential applications in dye production, particularly for textiles and biological stains.

As a scientist, one might note the importance of studying such compounds because they not only contribute to pharmaceutical advancements but also provide insights into the understanding of various organic reactions. The exploration of the biological activity of phenothiazines continues to be a significant area of research, promising exciting developments in the field of medicinal chemistry.

In conclusion, the compound [7-(dimethylamino)phenothiazin-3-ylidene]-dimethyl-ammonium;chloride embodies the intersection of organic chemistry and pharmacology, showcasing the complexity and utility of such chemical entities in real-world applications.

Synonyms
methylene blue
61-73-4
Basic blue 9
Methylthioninium chloride
Solvent blue 8
Swiss Blue
Chromosmon
C.I. Basic Blue 9
Methylene Blue anhydrous
Methylene Blue N
Methylene Blue BB
3,7-Bis(dimethylamino)phenothiazin-5-ium chloride
Methylenium ceruleum
Urolene blue
Bleu de methylene
Methylene Blue A
Methylene Blue B
Methylene Blue D
Methylene Blue G
External Blue 1
Methylene Blue chloride
Tetramethylene Blue
Calcozine Blue ZF
Methylene Blue BD
Methylene Blue BP
Methylene Blue BX
Methylene Blue BZ
Methylene Blue FZ
Methylene Blue GZ
Methylene Blue NZ
Methylene Blue SG
Methylene Blue SP
Methylene Blue ZF
Methylene Blue ZX
Methylthionine chloride
Methylenblau
Methylene Blue 2B
Methylene Blue BBA
Methylene Blue BPC
Methylene Blue HGG
Methylene Blue IAD
Methylene Blue JFA
Rember
Sandocryl Blue BRL
M-B Tabs
Methylene Blue 2BF
Methylene Blue 2BN
Methylene Blue 2BP
Modr methylenova
Mitsui Methylene Blue
Tetramethylthionine chloride
Methylthionium chloride
Leather Pure Blue HB
Ceruleum methylenum
Schultz No. 1038
Aizen Methylene Blue BH
Aizen Methylene Blue FZ
Methylene Blue Zinc Free
Methylenum coeruleum
CI Basic Blue 9
D And C Blue Number 1
Yamamoto Methylene Blue B
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride
Yamamoto Methylene Blue ZF
Methylene Blue (Medicinal)
C.I. 52015
Caswell No. 567
Ext D and C Blue No. 1
Methylthionini chloridum
Cloruro de metiltioninio
Methylene Blue I (Medicinal)
Methylthioninii chloridum
Lowacryl blue 9
Modr zasadita 9
Methylene Blue NF (Medicinal)
D and C Blue No. 1
Hidaco Methylene Blue Salt Free
Methylene Blue BB (Zinc Free)
Methylene Blue USP (Medicinal)
Metiltioninio cloruro
Modr rozpoustedlova 8
CCRIS 833
Provayblue
3,7-Bis(dimethylamino)phenazathionium chloride
HSDB 1405
azul de metileno
CI 52015
Methylene Blue Chloride (Biological stain)
Chlorure de methylthioninium
X 138
EINECS 200-515-2
Methylene Blue USP XII (Medicinal)
UNII-8NAP7826UB
MFCD00012111
EPA Pesticide Chemical Code 039505
NSC 215213
8NAP7826UB
CHEBI:6872
105504-42-5
12262-49-6
DTXSID0023296
NSC-215213
NSC-617593
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride
Trx0014
CI-52015
Chlorure de methylthioninium [INN-French]
DTXCID803296
Methylthioninium chloride [INN]
TRX-0014
NSC617593
METHYLTHIONINIUM CHLORIDE PROVEBLUE
Methylene Blue (C.I. 52015)
3H-Phenothiazine, 7-(dimethylamino)-3-(methylimino)-, 3-methochloride
N-[7-(dimethylamino)-3H-phenothiazin-3-ylidene]-N-methylmethanaminium chloride
NSC-759135
Zinc free Methylene Blue
Methylenblau [German]
3H-Phenothiazine, 3-methochloride
METHYLENE BLUE (II)
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride (1:1)
METHYLENE BLUE (IARC)
Blue, Methylene
Modr Methylenova [Czech]
CHEMBL405110
Modr Zasadita 9 [Czech]
Blue, Swiss
C.I. Basic Blue 9 trihydrate
CAS-61-73-4
N-(7-(dimethylamino)-3H-phenothiazin-3-ylidene)-N-methylmethanaminium chloride
METHYLTHIONINIUM CHLORIDE (MART.)
METHYLTHIONINIUM CHLORIDE [MART.]
NSC3089
152071-32-4
Blue N, Methylene
Metiltioninio cloruro [DCIT]
Chlorure de methylthioninium (INN-French)
Blue 9, Basic
methylthioninium chloride trihydrate
Modr Rozpoustedlova 8 [Czech]
NSC215213
C.I. 52 015
METHYLENE BLUE (USP MONOGRAPH)
METHYLTHIONINIUM CHLORIDE (EP IMPURITY)
METHYLTHIONINIUM CHLORIDE [EP IMPURITY]
C.I. Solvent Blue 8
NCGC00167496-01
NCGC00167496-03
Phenothiazin-5-ium,7-bis(dimethylamino)-, chloride
Methylthioninii chloridum [INN-Latin]
Cloruro de metiltioninio [INN-Spanish]
TETRAMETHYLTHIONINE CHLORIDE TRIHYDRATE
WLN: T C666 BS EY INJ EUK1&1 MN1&1 &G &421
Desmoidpillen
Collubleu
Vitableu
Azul Metile
Blu di Metilene
Methylene blue usp
Prestwick_326
Methylenum Caeruleum
Ehrlichs reagent III
97130-83-1
Loefflers Methylene Blue
methylthioninium chloratum
Methylene Blue (C.I. 52015) BioChemica
SCHEMBL1351
METHYLENE BLUE [MI]
Colour Index No. 52015
MLS000719838
METHYLENE BLUE [HSDB]
Methylthioninii chloridum (Latin)
V03AB17
V04CG05
HMS2598O03
Pharmakon1600-01505444
NSC-3089
Tox21_112497
Tox21_302087
HY-14536A
NSC759135
s4535
STK018918
AKOS000486124
AKOS015916406
Tox21_112497_1
CCG-267696
DB09241
FM07827
NCGC00255351-01
USEPA/OPP Pesticide Code: 039505.
AC-15225
AS-35256
Basic Blue 9;Tetramethylthionine chloride
HY-14536
METHYLTHIONINII CHLORIDUM ANHYDROUS
METHYLTHIONINIUM CHLORIDE [WHO-DD]
METHYLTHIONINIUM CHLORIDE ANHYDROUS
SMR000304367
SY076497
METHYLTHIONINII CHLORIDUM TRIHYDRATE
METHYLTHIONINIUM CHLORIDE [EMA EPAR]
A0574
M0501
M2392
NS00076145
C00220
EN300-6504462
3,7-Bis(dimethylamino)-5-phenothiazinium Chloride
Q422134
METHYLTHIONINIUM CHLORIDE ANHYDROUS [WHO-IP]
Methylene blue (purity inverted exclamation markY70%)
3,7-bis(dimethylamino)-phenothiazin-5-ium chloride salt
Z1954806063
METHYLTHIONINII CHLORIDUM ANHYDROUS [WHO-IP LATIN]
3,7-bis(dimethylamino)-5lambda4-phenothiazin-5-ylium chloride
Methylene Blue solution (1.5% (1.5 g/ 100 mL)), for microscopy
Methylene blue [Ion association reagent for spectrophotometric analysis]
n-(7-(dimethylamino)-3h-phenothiazin-3-ylidene)-n-methylmethanaminiumchloride
200-515-2