H-Asp(OtBu)-OMe.HCl

Name: H-Asp(OtBu)-OMe.HCl
Brand: ChemScene
Availability: InStock
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CAS No. 2673-19-0
Cat. No. CS-W019275
Purity≥97%
MDL No.MFCD00153427

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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+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 2673-19-0

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General Information

CAS No. 2673-19-0
Cat. No. CS-W019275
Purity ≥97%
MDL No. MFCD00153427
Storage 4°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₉H₁₈ClNO₄
Molecular Weight 239.70
Synonym(s) None
SMILES CC(C)(OC(C[C@H](N)C(OC)=O)=O)C.Cl

Description

H-Asp(OtBu)-OMe.HCl features a protected aspartic acid side chain with orthogonal functionality, enabling seamless integration into peptide synthesis. The tert-butyl ester group ensures stability during coupling steps, while the hydrochloride salt enhances solubility and handling under standard conditions.

Application

H-Asp(OtBu)-OMe·HCl serves as a key dipeptide building block in peptide synthesis, offering orthogonal protection of both the α-amino and side-chain carboxyl groups. The tert-butyl ester and Boc-protected amine enable selective deprotection under mild acidic conditions, facilitating efficient coupling reactions and minimizing epimerization. Its bench-stable solid form simplifies handling and purification, making it well-suited for iterative peptide assembly and the construction of complex peptide scaffolds.

Synthesis

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- 63327-57-1
- ~%
- In-stock
  
  2673-19-0
References
- LG Chem Investment Ltd. Patent: US6747050 B1, 2004 ; Location in patent: Page/Page column 45 ;

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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Computational Chemistry Data

TPSA 78.62
LogP 0.6403
H_Acceptors 5
H_Donors 1
Rotatable_Bonds 3

Other Classifications

Bioactive Molecules Peptides

Life Science Amino Acids and their Derivatives Aspartic acid and derivatives

Chemical Biology Peptide Chemistry Amino Acid Derivatives

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H-Asp(OtBu)-OMe.HCl

CAS No. 2673-19-0

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