ChemicalBook > CAS DataBase List > METHYLTHYMOL BLUE

METHYLTHYMOL BLUE

Product Name
METHYLTHYMOL BLUE
CAS No.
1945-77-3
Chemical Name
METHYLTHYMOL BLUE
Synonyms
MTB;METHYLTHYMOL BLUE;N-METHYLTHYMOL BLUE;Methyl thymol blue c;Methylthymol Blue W/S;Methyl thymol blue, GR;MTB, methyl thymol blue;METAB INDICATOR TABLETS;METHYLTHYMOL BLUE SODIUM;Methyl thyme blue indicator
CBNumber
CB8362429
Molecular Formula
C37H40N2Na4O13S
Formula Weight
844.74
MOL File
1945-77-3.mol
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METHYLTHYMOL BLUE Property

Melting point:
252-256°
Boiling point:
891.6°
bulk density
570kg/m3
storage temp. 
Store below +30°C.
solubility 
460g/l
form 
Powder
color 
Dark green to reddish-brown
PH
6.2 (10g/l, H2O, 20℃)
Water Solubility 
Soluble in water (460 g/L) at 20°C.
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
DIZZDZCUMBBRSG-UHFFFAOYSA-J
SMILES
C1C=C2C(C3C=C(C(C)C)C(O)=C(CN(CC(O[Na])=O)CC(O[Na])=O)C=3C)(C3C=C(C(C)C)C(O)=C(CN(CC(O[Na])=O)CC(O[Na])=O)C=3C)OS(=O)(=O)C2=CC=1
EPA Substance Registry System
Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-, tetrasodium salt (1945-77-3)
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Safety

Hazard Codes 
Xi
Risk Statements 
5-36/37/38
Safety Statements 
24/25-36-26-15
WGK Germany 
3
TSCA 
Yes
HS Code 
2934 99 90
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
1.06084
Product name
Methylthymol blue sodium salt
Purity
metal indicator
Packaging
1g
Price
$275
Updated
2025/07/31
Sigma-Aldrich
Product number
1.06084
Product name
Methylthymol blue sodium salt
Purity
metal indicator
Packaging
5G
Price
$313
Updated
2025/07/31
TCI Chemical
Product number
B0478
Product name
Methylthymol Blue Sodium Salt
Purity
>98.0%(HPLC)
Packaging
1g
Price
$52
Updated
2025/07/31
TCI Chemical
Product number
B0478
Product name
Methylthymol Blue Sodium Salt
Purity
>98.0%(HPLC)
Packaging
5g
Price
$164
Updated
2025/07/31
TCI Chemical
Product number
B0478
Product name
Methylthymol Blue Sodium Salt
Purity
>98.0%(HPLC)
Packaging
25g
Price
$566
Updated
2025/07/31
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METHYLTHYMOL BLUE Chemical Properties,Usage,Production

Chemical Properties

green-brown crystalline powder

Uses

Methylthymol Blue sodium salt is used as thymol-containing organic dye. It is used as an indicator for complexometry. It is used in determination of sulfate in rainwater. It combines with silica gel and aids in the separation and preconcentration of trace amounts of heavy metals from some salts.

Purification Methods

Methyl Thymol Blue, sodium salt [1945-77-3] M 844.8,  1.89 x 104 at 435nm, pH 5.5, 252525 25 25 25 25pK 1 3.0, pK 2 3.3, pK 3 3.8, pK 4 7.4 (pK 4 7.2) , pK 5 11.5 pK 6 13.4. The starting material for synthesis is Thymol Blue. Purify it as for Xylenol Orange on in “Heterocyclic Compounds”, Chapter 4. [Tereshin et al. J Anal Chem USSR (Engl Trans) 20 1138 1965, K.rbl & Kakác Collect Czech Chem Commun 23 889 1958, Beilstein 19/8 V 2830.]

METHYLTHYMOL BLUE Preparation Products And Raw materials

Raw materials

Preparation Products

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METHYLTHYMOL BLUE Suppliers

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View Lastest Price from METHYLTHYMOL BLUE manufacturers

Watson Biotechnology Co.,Ltd
Product
Methylthymol Blue 1945-77-3
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20MT
Release date
2025-03-13
Hebei Chuanghai Biotechnology Co,.LTD
Product
METHYLTHYMOL BLUE 1945-77-3
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-19
Career Henan Chemical Co
Product
METHYLTHYMOL BLUE 1945-77-3
Price
US $8.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10MT
Release date
2018-12-16

1945-77-3, METHYLTHYMOL BLUERelated Search:

Thymol Blue Acid chrome blue K Methyl Red sodium salt XYLENOL ORANGE 8-Hydroperoxy-p-cymene Methyl thymol blue indicator Methacrylamide Isobornyl methacrylate BTB Thymolphthalein Thymol blue indicator liquid Bromine thymol solution Thymol blue sodium salt Thymol THYMOL BLUE METHYLTHYMOL BLUE, PENTASODIUM SALT, PURE, 96,Methylthymol Blue, pentasodium salt, pure, 96% Methylthymol blue, sodium salt, indicator grade METHYLTHYMOL BLUE PENTASODIUM SALT

  • THYMOLSULFONEPHTHALEINDI-(METHYL-IMINODIACETIC ACID) SODIUM SALT
  • ethyl)-3,1-phenylene]methylene]]bis[n-(carboxymethyl)-,s,s-dioxide,tetrasodiu
  • glycine,n,n’-[3h-2,1-benzoxathiol-3-ylidenebis[[6-hydroxy-2-methyl-5-(1-methyl
  • Glycine,N,N’-[3H-2,1-benzoxathiol-3-ylidenebis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-,S,S-dioxide,tetrasodiumsalt
  • Methylthymol Blue W/S
  • N-Methylthymol, Blue Sodium Salt, Reagent
  • MTB, Thymolsulfonphthalein-3μ,3-bis(methyliminodiacetic acid sodium salt), 3,3μ-Bis[N,N-di(carboxymethyl)aminomethyl]thymolsulfonephthalein sodium salt
  • 3,3-Bis[3-[bis(sodiooxycarbonylmethyl)aminomethyl]-4-hydroxy-5-isopropyl-2-methylphenyl]-3H-2,1-benzoxathiole 1,1-dioxide
  • 3,3-Bis[5-isopropyl-4-hydroxy-2-methyl-3-[[N,N-bis[(sodiooxycarbonyl)methyl]amino]methyl]phenyl]-3H-2,1-benzoxathiole 1,1-dioxide
  • MethylthyMol Blue, tetrasodiuM salt, water soluble, pure 5GR
  • METHYLTHYMOL BLUE SODIUM SALT METAL INDI
  • Methylthymol Blue, tetrasodium salt,pure,water soluble
  • Thymolsulfonphthalein-3′,3''-bis(methylimin
  • Methyl thymol blue c
  • 3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]thymolsulfonphthalein Sodium Salt
  • Acetic acid,[3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-isopropyl-2-methyl-m-phenylene)methylenenitrilo]]tetra-, S,S-dioxide, tetrasodium salt
  • Methyl thyme blue indicator
  • MTB, methyl thymol blue
  • METHYLTHYMOL BLUE, SODIUM SALT, REAGENT (ACS)METHYLTHYMOL BLUE, SODIUM SALT, REAGENT (ACS)METHYLTHYMOL BLUE, SODIUM SALT, REAGENT (ACS)
  • Glycine,N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-,sodium salt (1:4)
  • 2-[[5-[3-[3-[[bis(carboxylatomethyl)amino]methyl]-4-hydroxy-2-methyl-5-propan-2-ylphenyl]-1,1-dioxo-2,1λ^{6}-benzoxathiol-3-yl]-2-hydroxy-6-methyl-3-propan-2-ylphenyl]methyl-(carboxylatomethyl)amino]acetate
  • Methyl thymol blue complexon, IND
  • N-METHYLTHYMOL BLUE
  • N-METHYLTHYMOL BLUE SODIUM SALT
  • MTB
  • Methylthymol Blue, tetrasodium salt, water soluble, pure
  • tetrasodium N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[[6-hydroxy-5-isopropyl-2-methylphen-3,1-ylene]methylene]]bis[N-(carboxylatomethyl)aminoacetate] S,S-dioxide
  • METHYL THYMOL BLUE INDICATOR FOR METAL T ITRATION
  • METHYLTHYMOL BLUE SODIUM SALT FOR &
  • METHYLTHYMOL BLUE SODIUM
  • MethylThymolBlueGr(PhIndicator)
  • Methylthymol bule complexone
  • Glycine, N,N-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylenemethylenebisN-(carboxymethyl)-, tetrasodium salt
  • N-METHYLTHYMOLBLUESODIUMSALT,REAGENT,ACS
  • METHYLTHYMOL BLUE SODIUM SALT, REAGENT (ACS)
  • METHYLTHYMOL BLUE
  • METHYL THYMOL BLUE COMPLEXONE
  • METHYLTHYMOL BLUE SODIUM SALT
  • METHYLTHYMOL BLUE TETRASODIUM SALT
  • METHYLTHYMOL BLUE TETRASODIUM SALT WATER SOLUBLE
  • METHYLTHYMOL BLUE, WATER SOLUBLE
  • METHYLTHYMOL BLUE, WATER SOLUBLE, TETRASODIUM SALT
  • METAB INDICATOR TABLETS
  • 3,3'-BIS[N,N-BIS(CARBOXYMETHYL)AMINOMETHYL]THYMOLSULFONPHTHALEIN
  • 3,3'-BIS[N,N-DI(CARBOXYMETHYL)AMINOMETHYL]THYMOLSULFONEPHTHALEIN, SODIUM SALT
  • 3,3'-BIS[N,N-DI(CARBOXYMETHYL)-AMINOMETHYL]THYMOL-SULFONPHTHALEIN SODIUM SALT
  • Methyl thymol blue complexon
  • Thymolsulfonphthalein-3′,3''-bis(methyliminodiacetic acid sodium salt)
  • Methylthymol Blue Sodium Salt &gt
  • Methylthymol Blue Sodium Salt (Technical Grade)
  • Methylthymol blue sodium salt, metal indicator
  • Methyl thymol blue complexone 1GM
  • Methyl thymol blue complexone 5GM
  • Methyl thymol blue, GR
  • Thymolsulfonephthaleindi-(Methyl-Iminodiacetic Acid) Sodium Salt, Pure, Fisher Chemical
  • METHYL THYMOL BLUE COMPLEXONE Indicator grade
  • Methylthymol blue (tetrasodium)
  • Sodium 2,2',2'',2'''-((((1,1-dioxido-3H-benzo[c][1,2]oxathiole-3,3-diyl)bis(6-hydroxy-5-isopropyl-2-methyl-3,1-phenylene))bis(methylene))bis(azanetriyl))tetraacetate