N-Z-L-aspartic anhydride - ≥95% , CAS No.4515-23-5

CAS: 4515-23-5 Cat. No.: N138858 Molecular Weight: 249.22 EC Number: 224-838-3
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
N-carbobenzoxy-aspartic anhydride | (S)-Benzyl (2,5-dioxotetrahydrofuran-3-yl)carbamate | CBZ-L-ASPARTIC ACID ANHYDRIDE | EINECS 224-838-3 | N-(Benzyloxycarbonyl)-L-aspartic acid anhydride | Q27289678 | N-Benzyloxycarbonyl Aspartic Anhydride | SY152005 |
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
N138858-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$125.90

$188.90
Save $63.00 (33.35%)
25g
N138858-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$472.90

$709.90
Save $237.00 (33.38%)
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal 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
N-carbobenzoxy-aspartic anhydride | (S)-Benzyl (2, 5-dioxotetrahydrofuran-3-yl)carbamate | CBZ-L-ASPARTIC ACID ANHYDRIDE | EINECS 224-838-3 | N-(Benzyloxycarbonyl)-L-aspartic acid anhydride | Q27289678 | N-Benzyloxycarbonyl Aspartic Anhydride | SY152005 |
Specifications & Purity
≥95%
Storage
Room temperature
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Canonical SmilesC1C(C(=O)OC1=O)NC(=O)OCC2=CC=CC=C2
IUPAC Namebenzyl N-[(3S)-2,5-dioxooxolan-3-yl]carbamate
InChIKeyOZPYEGOBGWQOSZ-VIFPVBQESA-N
INCHI1S/C12H11NO5/c14-10-6-9(11(15)18-10)13-12(16)17-7-8-4-2-1-3-5-8/h1-5,9H,6-7H2,(H,13,16)/t9-/m0/s1
Isomeric SMILES C1[C@@H](C(=O)OC1=O)NC(=O)OCC2=CC=CC=C2
WGK Germany 3
Molecular Weight 249.22
Reaxy-Rn 88425
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=88425&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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzyloxycarbonyls
Intermediate Tree Nodes Not available
Direct ParentBenzyloxycarbonyls
Alternative Parents Alpha amino acids and derivatives  Dicarboxylic acids and derivatives  Oxolanes  Carboxylic acid anhydrides  Carbamate esters  Lactones  Oxacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Alpha-amino acid or derivatives - Benzyloxycarbonyl - Dicarboxylic acid or derivatives - Carboxylic acid anhydride - Oxolane - Carbamic acid ester - Lactone - Carboxylic acid derivative - Oxacycle - Organoheterocyclic compound - Organonitrogen compound - Hydrocarbon derivative - Organic oxide - Organic nitrogen compound - Organopnictogen compound - Carbonyl group - Organooxygen compound - Organic oxygen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzyloxycarbonyls. These are organic compounds containing a carbonyl group substituted with a benzyloxyl group.
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:
Chemical and Physical Properties
Specific Rotation[α][α]20/D -25°, c = 1 in methanol
Melt Point(°C)123-124°C
Molecular Weight249.220 g/mol
XLogP30.900
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count5
Rotatable Bond Count4
Exact Mass249.064 Da
Monoisotopic Mass249.064 Da
Topological Polar Surface Area81.700 Ų
Heavy Atom Count18
Formal Charge0
Complexity348.000
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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