Xylenol Blue

SKU: X0006

Category: Non Fluorescent Detection & Chromogene Detection

Synonyms: p-Xylenolsulfonephthalein , p-Xylenol Blue , 1,4-Dimethyl-5-hydroxybenzenesulfonphthalein , NSC 10471; 125-31-5
CAS-Number: C₂₃H₂₂O₅S
Molecular Formula: 410.48
Molecular Weight

Product Data
Handling
Safety Information
Details

Specifications

Purity: ≥90% (NMR)
Identity: 1H-NMR
Appearance: Dark red-brown powder

Properties

UV / Vis: λmax 424 nm
Melting Point: 212 °C (dec.)(lit.)
Solvents: ethanol, water (slightly)

Long Term Storage: +4°C
Use / Stability: Stable for at least 2 years after receipt when stored at +4°C.
Handling Advice: Protect from light and moisture.
Short Term Storage: +4°C
Shipping: AMBIENT

Transportation: Not dangerous goods
Signal word: Warning
GHS Symbol: GHS07
Precautionary statements: P261-P305 + P351 + P338
Hazard statements: H315-H319-H335

Description: Sulfonephthalein dye. Acid-base pH indicator dye with pH ranges of pH 1.2 (Red) - pH 2.8 (Yellow), and pH 8.0 (Yellow) - pH 9.6 (Blue). Spectral data: Absorption, ?max 424nm. Has been used as pH sensor, indicator, in cosmetics and drug applications, microbiological assays and determining lipases.
InChi: InChI=1S/C23H22O5S/c1-13-11-20(24)15(3)9-18(13)23(19-10-16(4)21(25)12-14(19)2)17-7-5-6-8-22(17)29(26,27)28-23/h5-12,24-25H,1-4H3
References: (1) A. Cohen , Biochem. J. 16, 31 (1922) , (2) K. Vytras , Chem. Zvesti 28, 252 (1974) , (3) S. Dickopf, et al.: PNAS 92, 11519 (1995) , (4) S. Cihelnik, et al.: Collect. Czech. Chem. Commun. 67, 1779 (2002) , (5) M. Stastna, et al.: Electrophoresis 26, 53 (2005)
InChi Key: MGUKYHHAGPFJMC-UHFFFAOYSA-N
Smiles: O=S1(C2=CC=CC=C2C(C3=C(C)C=C(O)C(C)=C3)(C4=CC(C)=C(O)C=C4C)O1)=O

Sulfonephthalein dye. Acid-base pH indicator dye with pH ranges of pH 1.2 (Red) – pH 2.8 (Yellow), and pH 8.0 (Yellow) – pH 9.6 (Blue). Spectral data: Absorption, ?max 424nm. Has been used as pH sensor, indicator, in cosmetics and drug applications, microbiological assays and determining lipases.

SKU: X0006 Category: Non Fluorescent Detection & Chromogene Detection

Additional information

Additional information

Synonyms	p-Xylenolsulfonephthalein, p-Xylenol Blue, 1,4-Dimethyl-5-hydroxybenzenesulfonphthalein, NSC 10471
Purity	≥90% (NMR)
Appearance	Dark red-brown powder
CAS-Number	125-31-5
Molecular Formula	C23H22O5S
Molecular Weight	410.48
Identity	1H-NMR
Solvents	ethanol, water (slightly)
Melting Point	212 °C (dec.)(lit.)
UV / Vis	λmax 424 nm
Smiles	O=S1(C2=CC=CC=C2C(C3=C(C)C=C(O)C(C)=C3)(C4=CC(C)=C(O)C=C4C)O1)=O
InChi Key	MGUKYHHAGPFJMC-UHFFFAOYSA-N
Shipping	AMBIENT
Short Term Storage	+4°C
Long Term Storage	+4°C
Handling Advice	Protect from light and moisture.
Use / Stability	Stable for at least 2 years after receipt when stored at +4°C.
Hazard statements	H315-H319-H335
Precautionary statements	P261-P305 + P351 + P338
GHS Symbol	GHS07
Signal word	Warning
Transportation	Not dangerous goods
References	(1) A. Cohen, Biochem. J. 16, 31 (1922), (2) K. Vytras, Chem. Zvesti 28, 252 (1974), (3) S. Dickopf, et al.: PNAS 92, 11519 (1995), (4) S. Cihelnik, et al.: Collect. Czech. Chem. Commun. 67, 1779 (2002), (5) M. Stastna, et al.: Electrophoresis 26, 53 (2005)
InChi	InChI=1S/C23H22O5S/c1-13-11-20(24)15(3)9-18(13)23(19-10-16(4)21(25)12-14(19)2)17-7-5-6-8-22(17)29(26,27)28-23/h5-12,24-25H,1-4H3
Quantity	5 g, 25 g, 100 g, Bulk