P-XYLENOL BLUE

Product Name: P-XYLENOL BLUE
CAS No.: 125-31-5
Chemical Name: P-XYLENOL BLUE
Synonyms: Nsc 10471;XYLENOL BLUE;P-cresol blue;P-XYLENOL BLUE;PARA-XYLENOL BLUE;p-Xylenol Blue p.a.;XYLENOL BLUE FREE ACID;PARA-XYLENOLBLUE,NASALT;P-xylenolsulfophthalein;Xylenol blue, indicator
CBNumber: CB4367688
Molecular Formula: C23H22O5S
Formula Weight: 410.48
MOL File: 125-31-5.mol

More

Less

P-XYLENOL BLUE Property

Melting point:: 212°C (dec.)
Boiling point:: 577.2±50.0 °C(Predicted)
Density: 1.346±0.06 g/cm3(Predicted)
storage temp.: room temp
solubility: Solubility Slightly soluble in water, soluble in ethanol
form: Powder
pka: 9.52(at 25℃)
color: Dark brown
PH Range: 1.2(red)-2.8(yellow) 8(yellow)-9.6(blue)
Odor: Odorless
λmax: 424nm
Merck: 14,10083
BRN: 363132
Major Application: Electrochromic displays, chemical sensors, fiber-optic pH sensors, optical quality films, ink, corrosion testing, lubricants, TTI indicators, food storage, cosmetics, bacterial growth, microbiological assays, determining lipase, drugs
InChIKey: MGUKYHHAGPFJMC-UHFFFAOYSA-N
CAS DataBase Reference: 125-31-5(CAS DataBase Reference)
EPA Substance Registry System: Xylenol Blue (125-31-5)

More

Less

Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36/37/39-36
WGK Germany: 3
TSCA: Yes
HS Code: 29147000

More

Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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.

P405Store locked up.

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 205486
Product name: Xylenol Blue
Purity: indicator grade, Dye content 90%
Packaging: 1g
Price: $30.4
Updated: 2025/07/31

Sigma-Aldrich

Product number: 205486
Product name: Xylenol Blue
Purity: indicator grade, Dye content 90%
Packaging: 5g
Price: $91.8
Updated: 2025/07/31

TCI Chemical

Product number: X0016
Product name: p-Xylenol Blue
Purity: >95.0%(HPLC)
Packaging: 1g
Price: $36
Updated: 2025/07/31

TCI Chemical

Product number: X0016
Product name: p-Xylenol Blue
Purity: >95.0%(HPLC)
Packaging: 25g
Price: $294
Updated: 2025/07/31

TRC

Product number: X749560
Product name: Xylenol Blue
Packaging: 1g
Price: $40
Updated: 2021/12/16

More

Less

P-XYLENOL BLUE Chemical Properties,Usage,Production

Chemical Properties

P-XYLENOL BLUE is Brown powder

Uses

Indicator, used in 0.02% solution: pH 1.2 red, 2.8 yellow, 9.6 blue.

Uses

Xylenol Blue is used in methods and devices that change color to indicate the presence of opioids and other narcotics.

P-XYLENOL BLUE Preparation Products And Raw materials

Raw materials

Preparation Products

More

Less

P-XYLENOL BLUE Suppliers

Austria 1 China 105 Europe 1 France 2 Germany 4 India 13 Japan 3 Switzerland 4 United Kingdom 6 United States 19 Global 158

Aladdin Scientific

Tel
Email: tp@aladdinsci.com
Country: United States
ProdList: 57505
Advantage: 58

3B Scientific Corporation

Tel: --
Fax: --
Email: sales@3bsc.com
Country: United States
ProdList: 6962
Advantage: 56

Dudley Chemical Corp

Tel: --
Fax: --
Country: United States
ProdList: 174
Advantage: 58

ACS Chemical

Tel: --
Fax: --
Country: United States
ProdList: 36
Advantage: 58

United States Biological

Tel: --
Fax: --
Email: chemicals@usbio.net
Country: United States
ProdList: 6214
Advantage: 80

Riedel-de Haen AG

Tel: --
Fax: --
Country: United States
ProdList: 6773
Advantage: 87

TCI America

Tel: --
Fax: --
Email: sales@tciamerica.com
Country: United States
ProdList: 6909
Advantage: 75

NILE CHEMICALS

Tel: --
Fax: --
Email: nilechem@vsnl.net
Country: United States
ProdList: 1369
Advantage: 61

Advance Scientific & Chemical

Tel: --
Fax: --
Email: sales@advance-scientific.com
Country: United States
ProdList: 6419
Advantage: 71

3B Scientific Corporation

Tel: --
Fax: --
Email: sales@3bsc.com
Country: United States
ProdList: 6718
Advantage: 47

HONEST JOY HOLDINGS LIMITED

Tel: --
Fax: --
Email: sales@honestjoy.cn
Country: United States
ProdList: 6675
Advantage: 54

Dudley Chemical Corp.

Tel: --
Fax: --
Email: dudley@dudley-chem.com
Country: United States
ProdList: 687
Advantage: 64

Praxair Polska Sp. z.o.o.

Tel: --
Fax: --
Email: Peter_Ruck@praxair.com
Country: United States
ProdList: 80
Advantage: 82

Spectrum Chemicals & Laboratory Products

Tel: --
Fax: --
Email: sales@spectrumchemical.com
Country: United States
ProdList: 6699
Advantage: 77

MP Biomedicals, Inc.

Tel: --
Fax: --
Country: United States
ProdList: 6561
Advantage: 81

Kiran Light Laboratories

Tel: --
Fax: --
Country: United States
ProdList: 863
Advantage: 43

Alfa Aesar

Tel: --
Fax: --
Email: tech@alfa.com
Country: United States
ProdList: 6814
Advantage: 81

Eastern Chemical Corp.

Tel: --
Fax: --
Email: eastern@u-g.com
Country: United States
ProdList: 2786
Advantage: 34

Pfaltz & Bauer, Inc.

Tel: --
Fax: --
Email: sales@pfaltzandbauer.com
Country: United States
ProdList: 6828
Advantage: 72

125-31-5, P-XYLENOL BLUERelated Search:

P-XYLENE Xylenol PARA-XYLENOL BLUE - SOLUTION XYLENOL BLUE, SODIUM SALT METHYLXYLENOL BLUE XYLENOL BLUE SODIUM SALT INDICATOR,XYLENOL BLUE, SODIUM SALT, INDICATOR GRA DE,XYLENOL BLUE SODIUM SALT INDICATOR GRADE WATER SOLUBLE BTB CRESOL RED-THYMOL BLUE Bromoxylenol Blue Thymol Blue Methylthymol blue, sodium salt, indicator grade THYMOL BLUE DIMETHYLFORMAMIDE P-XYLENOL BLUE Sodium Thymol Blue BROMOTHYMOL BLUE-PHENOL RED

phenol,4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis[2,5-dimethyl-,s,s-dioxide

1,4-DIMETHYL-5-HYDROXYBENZENESULFONPHTHALEIN

4,4-(3H-2,1-benzoxathiol-3-ylidene)bis(2,5-dimethylphenol) S,S-dioxide

p-Xylenolsulphonephthalein

XYLENOL BLUE, INDICATOR GRADE

XYLENOL BLUE FREE ACID

P-XYLENOL BLUE INDICATOR

P-XYLENOL BLUE (0.04% IN CA. 95% ETHANOL) [FOR PH DETERMINATION]

P-XylenolBlueIndicatorGr

PARA-XYLENOLBLUE,NASALT

PARA-XYLENOLBLUE,SODIUMSALT

p-xylenolsulfonaphthalein

P-XylenolBlueIndicatorGr-(P-Xylenolsulfonphthalein)

Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis2,5-dimethyl-

p-Xylenol Blue, p-Xylenolsulfonephthalein

3,3-Bis(2,5-dimethyl-4-hydroxyphenyl)-3H-2,1-benzoxathiol 1,1-dioxide

3,3-Bis(2,5-dimethyl-4-hydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxide

p-Xylenesulfonephthalein

PARA-XYLENOL BLUE

P-XYLENOL BLUE

P-XYLENOLSULFONEPHTHALEIN

P-XYLENOLSULFONPHTHALEIN

XYLENOL BLUE

Xylenol Blue,p-Xylenol Blue, p-Xylenolsulfonephthalein

p-Xylenol Blue p.a.

P-cresol blue

2,5-xylenol, 4,4′-(3h-2,1-benzoxathiol-3-ylidene)di-, S,s-dioxide

P-xylenolsulfophthalein

Nsc 10471

Cp-xylenolsulfonphthalein

p-Xylenol Blue, 95%, indicator

2-[(E)-(2,5-dimethyl-4-oxo-1-cyclohexa-2,5-dienylidene)-(4-hydroxy-2,5-dimethylphenyl)methyl]benzenesulfonic acid

Xylenol Blue, ≥95%(HPLC)

4,4'-(3H-2,1-Benzoxathiol-3-yliden)bis[2,5-dimethylphenol]S,S-dioxid

Xylenol blue, indicator

Xylenol Blue pH indicator solution

p-Xylenol Blue extrapure AR, 95%

125-31-5

C23H22O5S

pH Indicators

Indicator (pH)

Sulfonephthalein

Organics

Analytical Chemistry

Indicator (pH)

pH Indicators