Boc-Asp(OtBu)-OH - ≥98% , CAS No.1676-90-0

CAS: 1676-90-0 Cat. No.: B105757 Molecular Weight: 289.32 Beilstein Registry Number: 2336144 EC Number: 834-856-9
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
(S)-4-tert-butoxy-2-(tert-butoxycarbonylamino)-4-oxobutanoic acid | tert-Butyloxycarbonyl-L-aspartic acid 4-tert-butyl ester | (S)-2-tert-butoxycarbonylamino-succinic acid 4-tert-butyl ester | AM20090006 | STL196591 | Boc-Asp(OtBu)-OH, >=99.0% (sum of ena
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
B105757-1g
3
$9.90
5g
B105757-5g
2
$10.90
25g
B105757-25g
3

$37.90

$56.90
Save $19.00 (33.39%)
100g
B105757-100g
3

$121.90

$182.90
Save $61.00 (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.

📋

Quality documents

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

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Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
(S)-4-tert-butoxy-2-(tert-butoxycarbonylamino)-4-oxobutanoic acid | tert-Butyloxycarbonyl-L-aspartic acid 4-tert-butyl ester | (S)-2-tert-butoxycarbonylamino-succinic acid 4-tert-butyl ester | AM20090006 | STL196591 | Boc-Asp(OtBu)-OH, >=99.0% (sum of ena
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 Sid504764531
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504764531
Canonical SmilesCC(C)(C)OC(=O)CC(C(=O)O)NC(=O)OC(C)(C)C
IUPAC Name(2S)-4-[(2-methylpropan-2-yl)oxy]-2-[(2-methylpropan-2-yl)oxycarbonylamino]-4-oxobutanoic acid
InChIKeyPHJDCONJXLIIPW-QMMMGPOBSA-N
INCHI1S/C13H23NO6/c1-12(2,3)19-9(15)7-8(10(16)17)14-11(18)20-13(4,5)6/h8H,7H2,1-6H3,(H,14,18)(H,16,17)/t8-/m0/s1
Isomeric SMILES CC(C)(C)OC(=O)C[C@@H](C(=O)O)NC(=O)OC(C)(C)C
WGK Germany 3
Molecular Weight 289.32
Beilstein 2336144
Reaxy-Rn 2336144
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2336144&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.

View datasheet →

🔬 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 Fatty acid esters  Branched fatty acids  Dicarboxylic acids and derivatives  Carbamate esters  Carboxylic acid esters  Carboxylic acids  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Aspartic acid or derivatives - Branched fatty acid - Fatty acid ester - Dicarboxylic acid or derivatives - Fatty acyl - Carbamic acid ester - Carboxylic acid ester - Carboxylic acid - Organonitrogen compound - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Carbonyl group - Organic nitrogen compound - Organooxygen 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.

7 results found

Lot NumberCertificate TypeDateItem
E2203054Certificate of AnalysisFeb 04, 2026 B105757
E2203055Certificate of AnalysisFeb 04, 2026 B105757
E2203057Certificate of AnalysisFeb 04, 2026 B105757
D1705086Certificate of AnalysisNov 07, 2024 B105757
H2430411Certificate of AnalysisAug 17, 2024 B105757
H2430582Certificate of AnalysisAug 17, 2024 B105757
H2430583Certificate of AnalysisAug 17, 2024 B105757
Chemical and Physical Properties
SolubilitySoluble in methanol and dimethyl sulfoxide.
SensitivityHeat Sensitive
Specific Rotation[α]2° (C=1,MeOH)
Melt Point(°C)64-67°C
Molecular Weight289.320 g/mol
XLogP31.400
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count8
Exact Mass289.153 Da
Monoisotopic Mass289.153 Da
Topological Polar Surface Area102.000 Ų
Heavy Atom Count20
Formal Charge0
Complexity377.000
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
Citations of This Product
References
1. Bowen Duan, Hongting Liu, Xiaoxuan Ji, Jingwen Dong, Xinping Luo, Feiran Zhang, Minjie Sun, Zhanwei Zhou.  (2024)  A bone-targeting permeable nanomicelle acting as an icebreaker for enhancing chemotherapy of osteosarcoma.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2024.150821]
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