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Merck

I6256

2-Iminothiolane hydrochloride

≥98% (TLC), powder

Synonym(s):

2-Thiolanimine hydrochloride, 2IT, Dihydro-2(3H)-thiophenimine hydrochloride, Traut’s reagent

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About This Item

Empirical Formula (Hill Notation):
C4H7NS · HCl
CAS Number:
4781-83-3
Molecular Weight:
137.63
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
24896086
MDL number:
MFCD00039013
Beilstein/REAXYS Number:
3620079
Assay:
≥98% (TLC)
Form:
powder
Solubility:
H2O: 100 mg/mL

Key Documents

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InChI

1S/C4H7NS.ClH/c5-4-2-1-3-6-4;/h5H,1-3H2;1H

SMILES string

N=C1SCCC1.Cl

InChI key

ATGUDZODTABURZ-UHFFFAOYSA-N

assay

≥98% (TLC)

form

powder

impurities

≤5% Free sulfhydryl groups

mp

198-201 °C (lit.)

solubility

H2O: 100 mg/mL

functional group

thioether

storage temp.

2-8°C

Quality Level

200

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Application

2-Iminothiolane hydrochloride has been used in the synthesis of thiolated PEG (poly(ethylene glycol). It may be used to synthesize PLA-SH (polyethylene glycol-thiol) and PLA-PEG-SH (polyethylene glycol–polylactic acid-thiol).
Thiolating reagent for primary amines. Reacts at pH 7-10 by amidine bond to present free sulfhydryl. Useful in preparation of disulfide and/or thioether linked conjugates.

General description

2-Iminothiolane hydrochloride (2-IT.HCl), a protein modification reagent, is commonly employed to attach thiol groups to proteins and peptides. Raman spectroscopic analysis of hair keratin fibers modified with 2-IT.HCl showed the formation of new disulfide groups.

Other Notes

Note that the amidine linkage preserves original primary amine positive charge. Incorporates a five atom linker.

pictograms

Skull and crossbones
GHS06

signalword

Danger

hcodes

H301

Hazard Classifications

Acute Tox. 3 Oral

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

I6256-100MG: + I6256-VAR: + I6256-500MG: + I6256-BULK: + I6256-1G:

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Certificates of Analysis (COA)

Lot/Batch Number
SLCL4349
SLCK8610
SLCK5080
SLCK4538
SLCJ8672

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Akio Kuzuhara
Biopolymers, 79(4), 173-184 (2005-09-08)
For the purpose of investigating in detail the influence of chemical modification using 2-iminothiolane hydrochloride (2-IT) on keratin fibers, the structure of cross-sections at various depths of white human hair, treated with 2-IT and then oxidized, was directly analyzed without
Sitah Al Harthi et al.
Scientific reports, 9(1), 9563-9563 (2019-07-04)
This study aims to prepare, characterize and evaluate the pharmacokinetics of liposomal donepezil HCl (LDH) dispersed into thiolated chitosan hydrogel (TCH) in rabbits. Various hydrogels including TCH were prepared, and after characterization, TCH was selected for subsequent evaluations, due to
Methyl 4-mercaptobutyrimidate as a cleavable cross-linking reagent and its application to the Escherichia coli 30S ribosome.
R R Traut et al.
Biochemistry, 12(17), 3266-3273 (1973-08-14)
Hafizah Mahmud et al.
International journal of molecular sciences, 19(3) (2018-03-03)
We recently have established a successful xenograft model of human glioblastoma cells by enriching hyaluronic acid-dependent spheroid-forming populations termed U251MG-P1 cells from U251MG cells. Since U251MG-P1 cells have been confirmed to express CD44 along with principal stemness marker genes, OCT3/4
Alexander Ewe et al.
Nanomedicine : nanotechnology, biology, and medicine, 13(1), 209-218 (2016-08-25)
Therapeutic applications of RNA interference (RNAi) require efficient siRNA delivery strategies in vivo. Combining lipid-based carriers with polymeric nanoparticles offers the favorable properties of both systems. This is the first study to explore polyethylenimine-based lipopolyplexes comprising a low-molecular weight PEI
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