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160954

Sigma-Aldrich

Methyl 4-nitrobenzenesulfonate

99%

Synonym(s):

Methyl nosylate, Methyl p-nitrobenzenesulfonate, Methyl p-nitrotosylate

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About This Item

Linear Formula:
O2NC6H4SO3CH3
CAS Number:
6214-20-6
Molecular Weight:
217.20
Beilstein:
2277327
EC Number:
228-282-2
MDL number:
MFCD00007344
UNSPSC Code:
12352100
PubChem Substance ID:
24849896
NACRES:
NA.22

Assay

99%

form

solid

mp

89-92 °C (lit.)

solubility

acetone: soluble 5%, clear, faintly yellow to greenish-yellow

SMILES string

COS(=O)(=O)c1ccc(cc1)[N+]([O-])=O

InChI

1S/C7H7NO5S/c1-13-14(11,12)7-4-2-6(3-5-7)8(9)10/h2-5H,1H3

InChI key

RMNJNEUWTBBZPT-UHFFFAOYSA-N

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General description

Reaction between methyl 4-nitrobenzenesulfonate and bromide ions has been studied in mixed single-chain-gemini micellar solutions. Kinetics of SN2 reactions of methyl 4-nitrobenzenesulfonate with ammonia, primary amines, secondary amines, tertiary amines and anionic nucleophiles has been studied.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315

Hazard Classifications

Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A Lewendon et al.
The Biochemical journal, 290 ( Pt 1), 15-19 (1993-02-15)
A catalytically essential histidine residue (His-195) of chloramphenicol acetyltransferase (CAT) acts as a general base in catalysis, abstracting a proton from the primary hydroxy group of chloramphenicol. The pKa of His-195 has been determined from the pH-dependence of chemical modification.
S Ishii et al.
Protein science : a publication of the Protein Society, 7(8), 1802-1810 (1999-03-19)
Aromatic L-amino acid decarboxylase (AADC) catalytic mechanism has been proposed to proceed through two consecutive intermediates (i.e., Michaelis complex and the external aldimine). Limited proteolysis of AADC that preferentially digested at the C-terminal side of Arg334 was slightly retarded in
O Paquatte et al.
Photochemistry and photobiology, 50(6), 817-825 (1989-12-01)
Vibrio harveyi luciferase, an alpha beta dimer, was effectively inactivated by treatment with the methylation agent methyl p-nitrobenzene sulfonate. However, inactivation of luciferase in the presence of excess amounts of this reagent did not follow pseudo-first-order kinetics. After taking the
T Kohzuma et al.
Journal of biochemistry, 106(6), 1054-1058 (1989-12-01)
When Trimeresurus flavoviridis phospholipase A2 was reacted with methyl p-nitrobenzenesulfonate, its activity decreased following first-order kinetics. The pH dependence of the rate constants of inactivation showed that His-48 with an apparent pKa of 6.5 controls the reaction. In the pH
J P Marcus et al.
Archives of biochemistry and biophysics, 316(1), 413-420 (1995-01-10)
Incubation of L-threonine dehydrogenase from Escherichia coli with methyl p-nitrobenzenesulfonate results in a time- and concentration-dependent loss of enzymatic activity. As the concentration of the methylating agent is increased, the rate of inactivation reaches a limiting value of 0.01 min-1
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