5-Ethynyl-1H-1,2,3-triazole

Name: 5-Ethynyl-1H-1,2,3-triazole
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 119720-87-5
Cat. No. CS-0611682
Purity≥98%
MDL No.None

HazMat Fee +

HazMat Fee

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, except in the following scenarios:

The shipment is processed through FedEx Ground under the Limited Quantity option.

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 119720-87-5

Size

Price

Quantity

* Please select Quantity before adding items.

General Information

CAS No. 119720-87-5
Cat. No. CS-0611682
Purity ≥98%
MDL No. None
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₄H₃N₃
Molecular Weight 93.09
Synonym(s) None
SMILES C#CC1=CN=NN1

Description

5-Ethynyl-1H-1,2,3-triazole features a terminal alkyne group conjugated to a stable triazole ring, enabling efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC). This scaffold integrates readily into bioconjugation workflows and polymer architectures, offering high reaction fidelity under mild conditions.

Application

5-Ethynyl-1H-1,2,3-triazole serves as a versatile building block in copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, enabling efficient access to triazole-linked scaffolds. Its terminal alkyne functionality exhibits high reactivity and compatibility with diverse functional groups, facilitating rapid conjugation under mild conditions. The compound demonstrates excellent bench stability and ease of purification, making it well-suited for use in medicinal chemistry, chemical biology, and materials science applications.

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H315-H319
Precautionary Statements : P264-P280-P302+P352-P362

Quality Control

To search for quality control of cas , please enter both the product number and the lot/batch number.

Computational Chemistry Data

TPSA 41.57
LogP -0.214
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Triazole compounds

Life Science Click Chemistry Reagents Alkyne

Chemical Biology Pharmaceutical Development and Drug Discovery Research Conjugation Chemistry/Click Chemistry Terminal Alkynes

Chemical Biology Conjugation Chemistry/Click Chemistry Terminal Alkynes

Key Words

5-Ethynyl-1H-1,2,3-triazole sigma5-Ethynyl-1H-1,2,3-triazole manufacturer5-Ethynyl-1H-1,2,3-triazole price5-Ethynyl-1H-1,2,3-triazole structure5-Ethynyl-1H-1,2,3-triazole SDSbuy 5-Ethynyl-1H-1,2,3-triazole5-Ethynyl-1H-1,2,3-triazole supplier5-Ethynyl-1H-1,2,3-triazole uses5-Ethynyl-1H-1,2,3-triazole molecular weightprice of 5-Ethynyl-1H-1,2,3-triazole5-Ethynyl-1H-1,2,3-triazole chemical name formula of 5-Ethynyl-1H-1,2,3-triazole

Salutation:	*Country or Region:
*Applicant Name:	*Organization Name:
*Email Address:	Quantity:
CAS NO. :	Product Name:
Remarks:
Upload Pictures

CAS.No.		Product Name
Applicant Name *		Email Address *
Phone Number *		Organization Name*
Country or Region*		Quantity*
Remarks:

Product Name:
Cat. No.: .		CAS NO. :
Quantity:

5-Ethynyl-1H-1,2,3-triazole

CAS No. 119720-87-5

Recommended Products