(Z-Cys-OH)2

Name: (Z-Cys-OH)2
Brand: ChemScene
Availability: InStock
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CAS No. 6968-11-2
Cat. No. CS-W011491
Purity≥98%
MDL No.MFCD00022030

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HazMat Fee

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Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

Structure of 6968-11-2

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Description

(Z-Cys-OH)2 is a stable, bench-ready dithiol reagent featuring two cysteine-derived thiol groups in a Z-configured disulfide linkage. This configuration enables selective conjugation in aqueous environments, facilitating site-specific bioconjugation and protein labeling with minimal aggregation. The molecule’s moisture-tolerant nature supports reliable handling under standard laboratory conditions.

Application

(Z-Cys-OH)₂ serves as a stable, bench-friendly dimeric precursor for cysteine-derived building blocks, enabling controlled thiol introduction in peptide synthesis and heterocycle construction. Its orthogonal reactivity supports selective functionalization under mild conditions, while the Z-protecting group ensures compatibility with standard coupling protocols and simplifies purification.

General Information

CAS No. 6968-11-2
Cat. No. CS-W011491
Purity ≥98%
MDL No. MFCD00022030
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₂₂H₂₄N₂O₈S₂
Molecular Weight 508.56
Synonym(s) None
SMILES O=C(OCC1=CC=CC=C1)N[C@H](C(O)=O)CSSC[C@@H](C(O)=O)NC(OCC2=CC=CC=C2)=O

Computational Chemistry Data

TPSA 151.26
LogP 3.127
H_Acceptors 8
H_Donors 4
Rotatable_Bonds 13

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Other Classifications

Bioactive Molecules Peptides

Life Science Amino Acids and their Derivatives Cysteine and derivatives

Life Science Amino Acids and their Derivatives N-protected amino acid

Chemical Biology Pharmaceutical Development and Drug Discovery Research Peptide Chemistry Amino Acid Derivatives

Chemical Biology Pharmaceutical Development and Drug Discovery Research Reagents Peptide Chemistry Amino Acid Derivatives

Chemical Biology Peptide Chemistry Amine Protection

Chemical Biology Peptide Chemistry Unnatural Amino Acid Derivatives

Biochemistry Biochemicals and Reagents Amino Acids N-Protected Amino Acids

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(Z-Cys-OH)2

CAS No. 6968-11-2

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