METHYLTHYMOL BLUE manufacturers and suppliers

METHYLTHYMOL BLUE suppliers

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

Symbol(GHS): GHS07

Signal word: Warning

Hazard statements: H302-H315-H319-H335

Precautionary statements: P261-P301+P312-P302+P352-P304+P340-P305+P351+P338

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

Use

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.]

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