89-36-1 60DZB69URT 3-Methyl-1-phenyl-5-pyrazolone-4'-sulfonic acid Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid AI3-08532 EINECS 201-901-3 NSC 26429 Pyrazoline G EC 201-901-3 UNII-60DZB69URT CAS 89-36-1

Purity 97%+In StockPharmaceutical Standards
CAS No.89-36-1
Molecular FormulaC10H16N2O4S
Molecular Weight260.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

89-36-1 60DZB69URT 3-Methyl-1-phenyl-5-pyrazolone-4'-sulfonic acid Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid AI3-08532 EINECS 201-901-3 NSC 26429 Pyrazoline G EC 201-901-3 UNII-60DZB69URT CAS 89-36-1 chemical structure

Description

As a certified reference material (CRM), 89-36-1 60DZB69URT 3-Methyl-1-phenyl-5-pyrazolone-4'-sulfonic acid Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid AI3-08532 EINECS 201-901-3 NSC 26429 Pyrazoline G EC 201-901-3 UNII-60DZB69URT meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

89-36-1 60DZB69URT 3-Methyl-1-phenyl-5-pyrazolone-4'-sulfonic acid Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid AI3-08532 EINECS 201-901-3 NSC 26429 Pyrazoline G EC 201-901-3 UNII-60DZB69URT (CAS 89-36-1) is a high-purity analytical reference standard with the molecular formula C10H16N2O4S and a molecular weight of 260.31 g/mol.

Based on its molecular formula C10H16N2O4S, 89-36-1 60DZB69URT 3-Methyl-1-phenyl-5-pyrazolone-4'-sulfonic acid Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid AI3-08532 EINECS 201-901-3 NSC 26429 Pyrazoline G EC 201-901-3 UNII-60DZB69URT contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC10H16N2O4S
Molecular Weight260.31 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms2
Sulfur Atoms1

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