Fmoc-L-Asp(OMpe)-OH - ≥97% , CAS No.180675-08-5

CAS: 180675-08-5 Cat. No.: F338868 Molecular Weight: 439.51 EC Number: 858-825-4
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
L-Aspartic acid, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 4-(1-ethyl-1-methylpropyl) ester | AKOS016014514 | Fmoc-Asp(Ompe)-OH | (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(3-methylpentan-3-yloxy)-4-oxobutanoic acid | DS-6844 | DTXSID00718532 | MFCD1000
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100mg
F338868-100mg
3
$9.90
250mg
F338868-250mg
3
$10.90
1g
F338868-1g
3

$15.90

$23.90
Save $8.00 (33.47%)
5g
F338868-5g
2

$70.90

$106.90
Save $36.00 (33.68%)
10g
F338868-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$112.90

$169.90
Save $57.00 (33.55%)
25g
F338868-25g
2

$281.90

$422.90
Save $141.00 (33.34%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads 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.

📚

Literature proof

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

Overview

explanation:

An excellent derivative for minimizing aspartimide formation during Fmoc SPPS of Asp-containing peptides. The bulky OMpe protecting group offers considerably more protection against the formation of aspartimide-related by-products than the commonly used OtBu group.

Specifications

Synonyms
L-Aspartic acid, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 4-(1-ethyl-1-methylpropyl) ester | AKOS016014514 | Fmoc-Asp(Ompe)-OH | (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(3-methylpentan-3-yloxy)-4-oxobutanoic acid | DS-6844 | DTXSID00718532 | MFCD1000
Specifications & Purity
≥97%
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Pubchem Sid504771456
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504771456
Canonical SmilesCCC(C)(CC)OC(=O)CC(C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13
IUPAC Name(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(3-methylpentan-3-yloxy)-4-oxobutanoic acid
InChIKeySYGKUYKLHYQKPL-NRFANRHFSA-N
INCHI1S/C25H29NO6/c1-4-25(3,5-2)32-22(27)14-21(23(28)29)26-24(30)31-15-20-18-12-8-6-10-16(18)17-11-7-9-13-19(17)20/h6-13,20-21H,4-5,14-15H2,1-3H3,(H,26,30)(H,28,29)/t21-/m0/s1
Isomeric SMILES CCC(C)(CC)OC(=O)C[C@@H](C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13
Molecular Weight 439.51
Reaxy-Rn 35318410
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=35318410&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 Fluorenes  Fatty acid esters  Dicarboxylic acids and derivatives  Carbamate esters  Carboxylic acid esters  Carboxylic acids  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents Aspartic acid or derivatives - Fluorene - Fatty acid ester - Dicarboxylic acid or derivatives - Fatty acyl - Benzenoid - Carbamic acid ester - Carboxylic acid ester - Carboxylic acid - Carbonyl group - Organonitrogen compound - Organooxygen compound - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Organic nitrogen compound - Aromatic homopolycyclic 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.

6 results found

Lot NumberCertificate TypeDateItem
I2207692Certificate of AnalysisJun 10, 2025 F338868
I2207697Certificate of AnalysisJun 10, 2025 F338868
I2207698Certificate of AnalysisJun 10, 2025 F338868
I2207760Certificate of AnalysisJun 10, 2025 F338868
I2207761Certificate of AnalysisJun 10, 2025 F338868
L2404152Certificate of AnalysisJul 06, 2022 F338868
Chemical and Physical Properties
Molecular Weight439.500 g/mol
XLogP34.600
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count11
Exact Mass439.199 Da
Monoisotopic Mass439.199 Da
Topological Polar Surface Area102.000 Ų
Heavy Atom Count32
Formal Charge0
Complexity653.000
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
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.