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Thymol Blue

Thymol Blue structure

CAS No.: 76-61-9

Chemical Name:: Thymol Blue

Synonyms: TB;s-dioxide;bleudethymol;THYMOL BLUE TS;THYMOLSULFONEPHTHALEIN;S NO 879;Nsc 11238;THYMOL BLUE;Thymol Blue,IND;Thymol blue, GR

CBNumber:: CB3672398

Molecular Formula:: C27H30O5S

Molecular Weight:: 466.59

MDL Number:: MFCD00005869

MOL File:: 76-61-9.mol

MSDS File:: SDS

Last updated:2025-01-27 09:38:02

Product description	Number	Pack Size	Price
Thymol Blue ACS reagent	114545	5g	$51.2
Thymol Blue ACS reagent	114545	25g	$155
Thymol blue indicator ACS,Reag. Ph Eur	1.08176	5G	$101
Thymol blue indicator ACS,Reag. Ph Eur	1.08176	25g	$252
Thymol Blue	T0235	1g	$36
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Thymol Blue Properties

Melting point	221-224 °C (dec.) (lit.)
Boiling point	539.4°C (rough estimate)
Density	1.1413 (rough estimate)
bulk density	350kg/m3
refractive index	1.5300 (estimate)
Flash point	36 °C
storage temp.	room temp
solubility	0.11g/l
form	Solid
pka	Pka1:1.65(at 25℃)(PH=1.2 to 2.8) Pka2:8.9(at 25℃)(PH=8.0 to 9.6)
color	Dark green to dark brown
PH Range	1.2(red)-2.8(yellow) 8(yellow)-9.6(blue)
PH	1.2-2.8 8.0-9.6
Odor	Characteristic odour
Water Solubility	Soluble in alcohol and dilute alkali solutions. Insoluble in water.
λmax	594nm, 376nm, 544nm, 430nm
ε(extinction coefficient)	≥12000 at 298-302nm in 0.1 M NaOH at 0.01g/L
Merck	14,9400
BRN	368036
Stability	Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents.
Major Application	Display device, semiconductors, sensors, fuel cells, antimisting coating for glass, toys, corrosion inhibitor, multi-level alert system, correction fluid, textiles, falsification-proof security paper, packaging system, measurement of hydrogen ion concentrationin swimming pool water, humidity-indicating agent, diapers, cosmetics, biostatic materials, determine bacteria growth, psychoactive drugs, antidepressant drugs, dental impression material
CAS DataBase Reference	76-61-9(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	8YB4804L4M
NIST Chemistry Reference	Thymolsulfonephthalein(76-61-9)
EPA Substance Registry System	Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)- (76-61-9)
UNSPSC Code	12171502
NACRES	NB.21

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H225-H301+H311+H331

Precautionary statements

P280-P305+P351+P338

Risk Statements

Safety Statements

24/25

RIDADR

UN 1170 3/PG 3

WGK Germany

RTECS

XP2575000

TSCA

Yes

HS Code

2934 99 90

PackingGroup

NFPA 704

	0
1		0

Thymol Blue price More Price(28)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	114545	Thymol Blue ACS reagent	76-61-9	5g	$51.2	2025-07-31	Buy
Sigma-Aldrich	114545	Thymol Blue ACS reagent	76-61-9	25g	$155	2025-07-31	Buy
Sigma-Aldrich	1.08176	Thymol blue indicator ACS,Reag. Ph Eur	76-61-9	5G	$101	2025-07-31	Buy
Sigma-Aldrich	1.08176	Thymol blue indicator ACS,Reag. Ph Eur	76-61-9	25g	$252	2025-07-31	Buy
TCI Chemical	T0235	Thymol Blue	76-61-9	1g	$36	2025-07-31	Buy

Product number	Packaging	Price	Buy
114545	5g	$51.2	Buy
114545	25g	$155	Buy
1.08176	5G	$101	Buy
1.08176	25g	$252	Buy
T0235	1g	$36	Buy

Thymol Blue Chemical Properties,Uses,Production

Chemical Properties

brown to green powder or crystals

Uses

As as acid-base indicator; pH: red 1.2 to yellow 2.8; also yellow 8.0 to blue 9.6.

Uses

Thymol Blue is a useful pH indicator compound. Dyes and metabolites.

Biochem/physiol Actions

Thymol Blue is a pH indicator, which is yellow/orange at low pH and blue in color at high pH.

Thymol Blue synthesis

Synthesis of Thymol Blue from Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-

Thymol Blue Preparation Products And Raw materials

Raw materials

Preparation Products

Triethyl orthoacetate Bromothymol Blue

Thymol Blue Suppliers

Global( 393)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5251	58
Watson Biotechnology Co.,Ltd	+86-18186686046 +86-18186686046;	sales01@watsonbiotech.cn	China	5756	58
Hebei Zhuanglai Chemical Trading Co Ltd	+86-16264648883	niki@zlchemi.com	China	7245	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21618	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29850	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	+86 18953170293	sales@sdzschem.com	China	2930	58
Shenyang Simchoice Chemical Co.,Ltd	+86-024-23769576 +86-15040101888	sales@simchoicechem.com	China	254	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49975	58
Tangshan Moneide Trading Co., Ltd.	+86-315-8309571 +8615633399667	sales@moneidechem.com	China	574	58
Richest Group Ltd	18017061086	oled@richest-group.com	CHINA	5600	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	58
Watson Biotechnology Co.,Ltd	58
Hebei Zhuanglai Chemical Trading Co Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	58
Shenyang Simchoice Chemical Co.,Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
Tangshan Moneide Trading Co., Ltd.	58
Richest Group Ltd	58

View Lastest Price from Thymol Blue manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-11-03	Thymol Blue 76-61-9	US $0.00-0.00 / kg	1kg	99%	20MT	Watson Biotechnology Co.,Ltd
2025-07-29	Thymol Blue 76-61-9	US $190.00 / KG	25KG	98%	1-10mt	Baoji Guokang Healthchem Co., Ltd.
2025-05-26	Thymol Blue 76-61-9	US $5.00-2.00 / KG	1KG	99%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD

Thymol Blue
76-61-9
US $0.00-0.00 / kg
99%
Watson Biotechnology Co.,Ltd

Thymol Blue
76-61-9
US $190.00 / KG
98%
Baoji Guokang Healthchem Co., Ltd.

Thymol Blue
76-61-9
US $5.00-2.00 / KG
99%
Hebei Chuanghai Biotechnology Co,.LTD

Thymol Blue Spectrum

Thymol Blue(76-61-9)MS Thymol Blue(76-61-9)IR1 Thymol Blue(76-61-9)IR2

76-61-9(Thymol Blue)Related Search:

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Methyl thymol blue complexon,METHYL THYMOL BLUE INDICATOR FOR METAL T ITRATION,METHYL THYMOL BLUE COMPLEXONE METHYLTHYMOL BLUE, PENTASODIUM SALT, PURE, 96 Sodium Thymol Blue

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THYMOLSULFONEPHTHALEIN THYMOL BLUE TS THYMOLSULFONPHTHALEIN THYMOL BLUE ETHANOL (50) THYMOL BLUE INDICATOR SOLUTION THYMOL BLUE TB S NO 879 PHYMOLSULFONPHTHALEIN 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-pheno 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)phenols,s-di Thymolsulphonephthalein LABOTEST-BB LT00454334 THYMOL BLUE FREE ACID THYMOL BLUE SOLUTION 100 ML THYMOL BLUE INDICATOR THYMOL BLUE SOLUTION ACID BASE INDICATOR ThymolBlueIndicatorGr Thymol Blue, ACS Thymol Blue, indicator, pure THYMOL BLUE, FREE ACID REAGENT (ACS) Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis5-methyl-2-(1-methylethyl)- THYMOLBLUE,REAGENT,ACS Thymol Blue (0.04% in Water) [for pH Determination] Thymol blue: (6,6(3H-2,1-benzoxathiol-3-ylidene)di-,S,S-dioxide) Thymol Blue, Reagent Thymol Blue, for analysis ACS THYMOL BLUE, FREE ACID, REAGENT (ACS)THYMOL BLUE, FREE ACID, REAGENT (ACS)THYMOL BLUE, FREE ACID, REAGENT (ACS) 6,6’-(3h-2,1-benzoxathiol-3-ylidene)dithymols,s-dioxide bleudethymol Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, S,S-dioxide Phenol,4,4’-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-,S,S-dioxide s-dioxide Thymol, 6,6'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide thymol,6,6’-(3h-2,1-benzoxathiol-3-ylidene)di-,s,s-dioxide Thymolsulfonephalein Thymolsulfophthalein Thymolsulphonphthalein Thymosulfonphthalein HALF FRASER BROTH 30X225ML 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl) Thymol blue, For ACS analysis Nsc 11238 Thymol Blue, indicator, ACS reagent 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-2,1-benzoxathiol 1,1-dioxide 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-2,1-benzoxathiole 1,1-dioxide 4,4'-[(3H-2,1-Benzoxathiole 1,1-dioxide)-3-ylidene]bis(5-methyl-2-isopropylphenol) Thymol Blue,pure,indicator Thymol blue, indicator, ACS Thymol blue, solution 0,04%, indicator Thymol Blue (0.1% in ca. 50% Ethanol)[for Titration] Thymol Blue p.a. THYMOL BLUE INDICATOR ACS 5 G THYMOL BLUE INDICATOR ACS 25 G 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)phenol] S,S-dioxide ThyMol Blue TS, USP Test Solution 3,3-Bis(4-hydroxy-5-isopropyl-2-Methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide ThyMol blue [Ink]