Acetyl-L-aspartic acid beta-tert-butyl ester - ≥98% , CAS No.117833-18-8

CAS: 117833-18-8 Cat. No.: A354240 Molecular Weight: 231.248
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Ac-L-Asp(OtBu)-OH | N-acetyl-L-aspartic acid, 4-(1,1-dimethylethyl) ester
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
A354240-250mg
3

$9.90

$14.90
Save $5.00 (33.56%)
1g
A354240-1g
3

$10.90

$16.90
Save $6.00 (35.50%)
5g
A354240-5g
3

$39.90

$59.90
Save $20.00 (33.39%)
25g
A354240-25g
2

$157.90

$236.90
Save $79.00 (33.35%)
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Ac-L-Asp(OtBu)-OH | N-acetyl-L-aspartic acid, 4-(1, 1-dimethylethyl) ester
Specifications & Purity
≥98%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid504764615
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504764615
Canonical SmilesCC(=O)NC(CC(=O)OC(C)(C)C)C(=O)O
IUPAC Name(2S)-2-acetamido-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid
InChIKeyNKNPTCBHHPHSEA-ZETCQYMHSA-N
INCHI1S/C10H17NO5/c1-6(12)11-7(9(14)15)5-8(13)16-10(2,3)4/h7H,5H2,1-4H3,(H,11,12)(H,14,15)/t7-/m0/s1
Isomeric SMILES CC(=O)N[C@@H](CC(=O)OC(C)(C)C)C(=O)O
Molecular Weight 231.248
Reaxy-Rn 14198989
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14198989&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Amino acids and derivatives - Alpha amino acids and derivatives
Direct ParentAspartic acid and derivatives
Alternative Parents N-acyl-L-alpha-amino acids  Fatty acid esters  Branched fatty acids  Dicarboxylic acids and derivatives  Acetamides  Secondary carboxylic acid amides  Carboxylic acid esters  Carboxylic acids  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Aspartic acid or derivatives - N-acyl-l-alpha-amino acid - N-acyl-alpha-amino acid - N-acyl-alpha amino acid or derivatives - Branched fatty acid - Fatty acid ester - Dicarboxylic acid or derivatives - Fatty acyl - Acetamide - Carboxamide group - Carboxylic acid ester - Secondary carboxylic acid amide - Carboxylic acid - Organooxygen compound - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Carbonyl group - Organic nitrogen compound - Organonitrogen compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as aspartic acid and derivatives. These are compounds containing an aspartic acid or a derivative thereof resulting from reaction of aspartic acid at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot NumberCertificate TypeDateItem
I2224017Certificate of AnalysisJul 10, 2025 A354240
I2224019Certificate of AnalysisJul 10, 2025 A354240
I2224621Certificate of AnalysisJul 10, 2025 A354240
I2224622Certificate of AnalysisJul 10, 2025 A354240
Chemical and Physical Properties
Molecular Weight231.250 g/mol
XLogP30.000
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count6
Exact Mass231.111 Da
Monoisotopic Mass231.111 Da
Topological Polar Surface Area92.700 Ų
Heavy Atom Count16
Formal Charge0
Complexity292.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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