1-(4-Sulfophenyl)-3-methyl-5-pyrazolone

CAS 89-36-1C10H10N2O4SChemical Synthesis

1-(4-Sulfophenyl)-3-methyl-5-pyrazolone (CAS: 89-36-1; Formula: C10H10N2O4S; MW: 254.26) is a heterocyclic compound utilized as a building block in chemical synthesis. Primarily employed as a derivatization reagent, it facilitates the pre-column analysis of carbohydrates. It is also instrumental in determining oligosides, mannose, and galactose obtained from galactomannan degradation, offering precise analytical capabilities.

IUPAC: 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one,4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid
Synonyms: 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid

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1-(4-Sulfophenyl)-3-methyl-5-pyrazolone (C10H10N2O4S) — chemical structure, CAS 89-36-1; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksC10Chemical SynthesisHeterocyclic Building BlocksPyrazoles

01 /Applications

Carbohydrate Analysis

1-(4-Sulfophenyl)-3-methyl-5-pyrazolone serves as a pre-column derivatization reagent for the analysis of carbohydrates, enabling enhanced detection and quantification.

Oligosaccharide Determination

This compound is applied in the determination of oligosides, mannose, and galactose derived from galactomannan degradation, providing critical insights into polysaccharide structures.

Analytical Chemistry Reagent

As a versatile reagent, it is employed in various analytical techniques requiring the derivatization of specific analytes for improved detection limits or chromatographic separation.

02 /Properties

Molecular weight	254.26
Empirical formula	C10H10N2O4S
Application	1-(4-Sulfophenyl)-3-methyl-5-pyrazolone (4-(3-methyl-5-oxo-2-pyrazolin-1-yl) benzoic acid) was used for pre-column derivatization of carbohydrates1. It was also used as derivatization reagent in determination of oligosides, mannose and galactose obtained by degradation of galactomannans2.
Melting point	>252 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 1759 8 / PGII
Water hazard class (WGK, DE)	1
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

89-36-1

MDL number

MFCD00020756

PubChem substance

24848135

Beilstein registry

619424

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone used for?

This compound is primarily used as a derivatization reagent in analytical chemistry, particularly for the pre-column derivatization of carbohydrates and the determination of specific sugars like mannose and galactose.

What are the CAS number and formula for 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone?

The CAS number is 89-36-1, and the empirical formula is C10H10N2O4S.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this chemical for research and development purposes. The specific assay and purity are detailed in the product's Certificate of Analysis. TSS does not represent this product as meeting USP, BP, EP, or any other pharmacopoeia standards.

What are the safety and handling considerations for this chemical?

This compound is classified as corrosive, causing severe skin burns and eye damage (H314). It requires the use of appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection. Handling should be done in a well-ventilated area.

Is this chemical shipped or exported internationally?

Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone, adhering to all relevant shipping and export regulations.

How can I request a sample or a quote for this product?

To request a sample or obtain a quotation, please contact our sales department through the website or by calling our customer service number, referencing the product name and CAS number 89-36-1.