Description Price Quantity Buy
Package Sizes: 500 mg
SKU: 14104-500
Package Sizes: 1 gram
SKU: 14104-1
2-Iminothiolane hydrochloride (Traut's Reagent) is a useful reagent for converting primary amine functional groups into free sulfhydryl groups. Traut's reagent (2-IT) is a simple water soluble, ringed molecule that completes this primary amine (-NH2) to sulfhydryl (-SH) conversion reaction in a one-step procedure in the pH range of 7 to 10. Once modification of a protein molecule with 2-Iminothiolane is complete, free amine groups will have been irreversibly converted to a sulfhydryl group with a four atom chain and without significant disruption of the original amine groups protonation state.

After incorporation of the Traut's free sulfhydryl into a protein or otherwise, this -SH group makes for a very useful handle for further modification, such as selectively reacting this modified protein with a SMCC or BMPS containing conjugates, creating a permanent bond between two proteins. A 2-Iminothiolane modified protein or peptide could also be used to create a reversible link with an SPDP containing conjugate. Please feel free to contact our technical support staff for further questions specifically related to your application.

Package Sizes: 500 mg and 1 gram

Product Numbers: 14104-500mg and 14104-1g

Product Name: 2-Iminothiolane

Alternative Names: 2-IT; Traut's Reagent; 4781-83-3; 2-Iminothiolane HCl; 2-Iminothiolane hydrochloride; Dihydro-2-(3H)-thiophenimine hydrochloride; Dihydro-2-(3H)-thiophenimine HCl; C4H8ClNS


Appearance: White Solid

Purity: is ≥ 95%

Storage: 2 - 8 °C, protected from moisture


Properties Physical State: White Solid, Free of Foreign Matter

CAS#: 4781-83-3

Chemical Formula: C4H8ClNS

Molecular Weight: 137.63

Spacer length: 8.1 Å

Melting Point: 197-201 °C (Lit)

Tariff Code: 2934.99.9000

: *
: *
: *

Sulfo-NHS Acetate

Sulfo-NHS Acetate (Sulfosuccinimidyl acetate) is a protein modification reagent used to irreversibly block lysine residues.


Set your own price!

N-succinimidyl-S-acetyl-thioacetate (SATA)

N-succinimidyl-S-acetyl-thioacetate (SATA) is a protein modification reagent used to convert lysines to protected sulfhydryls (-SH), which can be activated by the use of hydroxylamine.


Set your own price!


DSS Crosslinker



DSG Crosslinker