METHYLTHYMOL BLUE CAS 1945-77-3

Introduction：Basic information about METHYLTHYMOL BLUE CAS 1945-77-3, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

METHYLTHYMOL BLUE Basic information

• Product Name: METHYLTHYMOL BLUE
• Synonyms: 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
• CAS: 1945-77-3
• MF: C37H40N2Na4O13S
• MW: 844.74
• EINECS: 217-743-3
• Product Categories: Analytical Chemistry;Chelating Reagents;Complexones;Photometric Reagents (Complexone)
• Mol File: 1945-77-3.mol

METHYLTHYMOL BLUE Chemical Properties

• 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)

Safety Information

• Hazard Codes: Xi
• Risk Statements: 5-36/37/38
• Safety Statements: 24/25-36-26-15
• WGK Germany: 3
• TSCA: TSCA listed
• HS Code: 2934 99 90
• Storage Class: 11 - Combustible Solids

METHYLTHYMOL BLUE Usage And Synthesis

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.]