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41368

Supelco

p-Toluenesulfonyl isocyanate

for HPLC derivatization, LiChropur™, ≥98.0% (GC)

Synonym(s):

p-Tosyl isocyanate, TsNCO, Tosyl isocyanate

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About This Item

Linear Formula:
CH3C6H4SO2NCO
CAS Number:
4083-64-1
Molecular Weight:
197.21
Beilstein:
391287
EC Number:
223-810-8
MDL number:
MFCD00002030
UNSPSC Code:
41116105
PubChem Substance ID:
329756094
NACRES:
NA.22

grade

for HPLC derivatization

Quality Level

100

vapor pressure

1 mmHg ( 100 °C)

Assay

≥98.0% (GC)

form

liquid

quality

LiChropur™

technique(s)

HPLC: suitable

refractive index

n20/D 1.533-1.537
n20/D 1.534 (lit.)

bp

144 °C/10 mmHg (lit.)
275-278 °C (lit.)

density

1.291 g/mL at 25 °C (lit.)

SMILES string

Cc1ccc(cc1)S(=O)(=O)N=C=O

InChI

1S/C8H7NO3S/c1-7-2-4-8(5-3-7)13(11,12)9-6-10/h2-5H,1H3

InChI key

VLJQDHDVZJXNQL-UHFFFAOYSA-N

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General description

p-Toluenesulfonyl isocyanate, a sulfonyl isocyanate derivative, is a highly reactive compound that finds application as a water scavenger. It is used as a component of polyurethane coatings, sealants, adhesives and as an intermediate of several industrially important chemicals.

Application

p-Toluenesulfonyl isocyanate may be used as a derivatization reagent for the analyses of diethylene glycol and propylene glycol in pharmaceutical products, stereoisomers of 3-hydroxyl-7-methyl-norethynodrel in biological samples, and pyrrolizidine alkaloids in herbal tea formulations by high performance liquid chromatography (HPLC) based techniques.

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Statements

H315,H319,H334,H335

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

294.8 °F - closed cup

Flash Point(C)

146 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH2852
BCCG8055
BCCG0642
BCCF3192
BCCD6507

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K Parimala et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 81(1), 711-723 (2011-07-29)
The Fourier transform infrared (FTIR) and FT Raman spectra of p-toluenesulfonyl isocyanate (p-tosyl isocyanate) have been measured. The molecular geometry, vibrational frequencies, infrared intensities, Raman activities and atomic charges have been calculated by using ab initio HF and density functional
Ming Zuo et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 814(2), 331-337 (2005-01-11)
In this paper, p-toluenesulfonyl isocyanate has been reported as a novel derivatization reagent with strong nuclephilic reactivity for the hydroxyl compounds. The derivatization for the two pharmacologically active 3-hydroxyl metabolites, 3alpha-hydroxyl-7-methyl-norethynodrel and 3beta-hydroxyl-7-methyl-norethynodrel by p-toluenesulfonyl isocyanate can be accomplished in
Inga Mädge et al.
Food chemistry, 187, 491-498 (2015-05-16)
A general contamination of tea with pyrrolizidine alkaloids (PA) has just become known. Here, we report the application and modification of a new HPLC-ESI-MS/MS sum parameter method to quantitate PA content of herbal teas intended for infants, pregnant and lactating
Tao Zhou et al.
Journal of separation science, 30(16), 2620-2627 (2007-09-21)
A simple and reliable HPLC method was developed for the simultaneous quantitative analysis of diethylene glycol (DEG) and propylene glycol (PG) in pharmaceutical products by precolumn derivatization. The derivatization reagent p-toluenesulfonyl isocyanate (TSIC, 10 microL, 20% in ACN v/v) was

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