But-3-yn-2-amine hydrochloride

Name: But-3-yn-2-amine hydrochloride
Brand: ChemScene
Availability: InStock
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CAS No. 42105-26-0
Cat. No. CS-0072301
Purity≥97%
MDL No.None

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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+
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But-3-yn-2-amine hydrochloride|CS-0072301

Structure of 42105-26-0

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General Information

CAS No. 42105-26-0
Cat. No. CS-0072301
Purity ≥97%
MDL No. None
Storage 4°C, protect from light, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₄H₈ClN
Molecular Weight 105.57
Synonym(s) but-3-yn-2-amine HCl
SMILES C#CC(C)N.Cl

Description

But-3-yn-2-amine hydrochloride features a terminal alkyne group conjugated to a primary amine, enabling efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC). This bifunctional scaffold integrates seamlessly into bioconjugation workflows and modular synthesis. The hydrochloride salt enhances solubility and stability under standard handling conditions.

Application

But-3-yn-2-amine hydrochloride serves as a versatile building block for alkyne-containing scaffolds, enabling efficient access to functionalized heterocycles via copper-catalyzed cycloadditions and nucleophilic additions. Its amine functionality facilitates straightforward derivatization, while the terminal alkyne supports diverse coupling reactions. The hydrochloride salt enhances bench stability and simplifies handling and purification in standard organic workflows.

Synthesis

Route1
- 59967-06-5
- ~%
- In-stock
  
  42105-26-0
References
- Song, Hongjian; Liu, Yongxian; Wang, Qingmin Organic Letters, 2013 , vol. 15, # 13 p. 3274 - 3277
Route2
- 14396-89-5
- ~%
- In-stock
  
  42105-26-0
References
- Zhu, Youquan; Liu, Pei; Wang, Danyang; Zhang, Jin; Cheng, Jie; Ma, Yuan; Zou, Xiaomao; Yang, Huazheng Chinese Journal of Chemistry, 2013 , vol. 31, # 2 p. 173 - 181

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H317
Precautionary Statements : P261-P272-P280-P302+P352-P363-P501

Quality Control

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Computational Chemistry Data

TPSA 26.02
LogP 0.3886
H_Acceptors 1
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Amine

Key Words

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But-3-yn-2-amine hydrochloride

CAS No. 42105-26-0

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