N-Carbobenzoxy-L-proline tert-Butyl Ester - ≥98%(HPLC) , CAS No.16881-39-3

CAS: 16881-39-3 Cat. No.: N159606 Molecular Weight: 305.37
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(HPLC)
Synonyms
1-O-benzyl 2-O-tert-butyl (2S)-pyrrolidine-1,2-dicarboxylate | N-Carbobenzoxy-L-proline tert-Butyl Ester | 1,2-Pyrrolidinedicarboxylic acid, 2-(1,1-dimethylethyl) 1-(phenylmethyl) ester, (2S)- | AS-46838 | MFCD00051777 | (S)-1-Benzyl 2-tert-butyl pyrrolid
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
N159606-5g
6

$74.90

$112.90
Save $38.00 (33.66%)
25g
N159606-25g
4

$251.90

$377.90
Save $126.00 (33.34%)
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Why this grade

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

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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.

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Literature proof

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

Specifications

Synonyms
1-O-benzyl 2-O-tert-butyl (2S)-pyrrolidine-1, 2-dicarboxylate | N-Carbobenzoxy-L-proline tert-Butyl Ester | 1, 2-Pyrrolidinedicarboxylic acid, 2-(1, 1-dimethylethyl) 1-(phenylmethyl) ester, (2S)- | AS-46838 | MFCD00051777 | (S)-1-Benzyl 2-tert-butyl pyrrolid
Specifications & Purity
≥98%(HPLC)
Storage
Room temperature
Shipped In
Normal
Purity
≥98%(HPLC)
Names and Identifiers
Canonical SmilesCC(C)(C)OC(=O)C1CCCN1C(=O)OCC2=CC=CC=C2
IUPAC Name1-O-benzyl 2-O-tert-butyl (2S)-pyrrolidine-1,2-dicarboxylate
InChIKeyOULMZZGGALAOLR-AWEZNQCLSA-N
INCHI1S/C17H23NO4/c1-17(2,3)22-15(19)14-10-7-11-18(14)16(20)21-12-13-8-5-4-6-9-13/h4-6,8-9,14H,7,10-12H2,1-3H3/t14-/m0/s1
Isomeric SMILES CC(C)(C)OC(=O)[C@@H]1CCCN1C(=O)OCC2=CC=CC=C2
Molecular Weight 305.37
Reaxy-Rn 490488
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=490488&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

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✅ Certificate of Analysis (COA)

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

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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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 ParentAlpha amino acid esters
Alternative Parents Proline and derivatives  Benzyloxycarbonyls  Pyrrolidine carboxylic acids  Carbamate esters  Carboxylic acid esters  Monocarboxylic acids and derivatives  Azacyclic compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Alpha-amino acid ester - Proline or derivatives - Benzyloxycarbonyl - Pyrrolidine carboxylic acid - Pyrrolidine carboxylic acid or derivatives - Monocyclic benzene moiety - Benzenoid - Pyrrolidine - Carbamic acid ester - Carboxylic acid ester - Azacycle - Monocarboxylic acid or derivatives - Organoheterocyclic compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Carbonyl group - Organic oxide - Organic oxygen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as alpha amino acid esters. These are ester derivatives of alpha amino acids.
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.

2 results found

Lot NumberCertificate TypeDateItem
H2220334Certificate of AnalysisJun 08, 2026 N159606
H2222110Certificate of AnalysisJun 08, 2026 N159606
Chemical and Physical Properties
Boil Point(°C)51°C/1mmHg(lit.)
Molecular Weight305.400 g/mol
XLogP33.000
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count6
Exact Mass305.163 Da
Monoisotopic Mass305.163 Da
Topological Polar Surface Area55.800 Ų
Heavy Atom Count22
Formal Charge0
Complexity396.000
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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