N-(tert-Butoxycarbonyl)-trans-4-(p-toluenesulfonyloxy)-L-proline Methyl Ester - ≥98%(HPLC) , CAS No.88043-21-4

CAS: 88043-21-4 Cat. No.: T137714 Molecular Weight: 399.46 Beilstein Registry Number: 7231334 EC Number: 686-032-1 PubChem CID: 13425772
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(HPLC)
Synonyms
SCHEMBL3182745 | N-(tert-Butoxycarbonyl)-trans-4-(p-toluenesulfonyloxy)-L-proline Methyl Ester | (2S,4R)-4-[[(4-Methylphenyl)sulfonyl]oxy]-1,2-pyrrolidinedicarboxylic Acid 1-(1,1-Dimethylethyl) 2-Methyl Ester | N-Tert-Butyloxycarbonyl-o-p-Toluenesulfonyl-
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
T137714-250mg
3
$9.90
1g
T137714-1g
3
$15.90
5g
T137714-5g
2
$74.90
25g
T137714-25g
1
$283.90
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Why this grade

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

🌡

Storage & shipping

Store at 2-8°C,Argon charged 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
SCHEMBL3182745 | N-(tert-Butoxycarbonyl)-trans-4-(p-toluenesulfonyloxy)-L-proline Methyl Ester | (2S, 4R)-4-[[(4-Methylphenyl)sulfonyl]oxy]-1, 2-pyrrolidinedicarboxylic Acid 1-(1, 1-Dimethylethyl) 2-Methyl Ester | N-Tert-Butyloxycarbonyl-o-p-Toluenesulfonyl-
Specifications & Purity
≥98%(HPLC)
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%(HPLC)
Names and Identifiers
Pubchem Sid504767404
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504767404
Canonical SmilesCC1=CC=C(C=C1)S(=O)(=O)OC2CC(N(C2)C(=O)OC(C)(C)C)C(=O)OC
IUPAC Name1-O-tert-butyl 2-O-methyl (2S,4R)-4-(4-methylphenyl)sulfonyloxypyrrolidine-1,2-dicarboxylate
InChIKeyUKVKNGDXVREPDE-HIFRSBDPSA-N
INCHI1S/C18H25NO7S/c1-12-6-8-14(9-7-12)27(22,23)26-13-10-15(16(20)24-5)19(11-13)17(21)25-18(2,3)4/h6-9,13,15H,10-11H2,1-5H3/t13-,15+/m1/s1
Isomeric SMILES CC1=CC=C(C=C1)S(=O)(=O)O[C@@H]2C[C@H](N(C2)C(=O)OC(C)(C)C)C(=O)OC
WGK Germany 3
PubChem CID 13425772
Molecular Weight 399.46
Beilstein 7231334
Reaxy-Rn 7231334

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.

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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.

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 ParentAlpha amino acid esters
Alternative Parents Proline and derivatives  p-Methylbenzenesulfonates  Benzenesulfonate esters  Tosyl compounds  Arylsulfonic acids and derivatives  Benzenesulfonyl compounds  Pyrrolidine carboxylic acids  Organosulfonic acid esters  Sulfonyls  Carbamate esters  Methyl esters  Azacyclic compounds  Monocarboxylic acids and derivatives  Carbonyl compounds  Organic oxides  Hydrocarbon derivatives  Organonitrogen compounds  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Alpha-amino acid ester - Proline or derivatives - Benzenesulfonate ester - P-methylbenzenesulfonate - Benzenesulfonate - Tosyl compound - Arylsulfonic acid or derivatives - Benzenesulfonyl group - Pyrrolidine carboxylic acid - Pyrrolidine carboxylic acid or derivatives - Toluene - Benzenoid - Monocyclic benzene moiety - Organosulfonic acid ester - Carbamic acid ester - Pyrrolidine - Sulfonyl - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Methyl ester - Carboxylic acid ester - Monocarboxylic acid or derivatives - Azacycle - Organoheterocyclic compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Hydrocarbon derivative - Carbonyl group - Organic oxide - Organosulfur compound - 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.

5 results found

Lot NumberCertificate TypeDateItem
K2521114Certificate of AnalysisNov 27, 2025 T137714
H2118218Certificate of AnalysisJun 20, 2024 T137714
H2118219Certificate of AnalysisJun 20, 2024 T137714
H2118258Certificate of AnalysisJun 20, 2024 T137714
H2118328Certificate of AnalysisJun 20, 2024 T137714
Chemical and Physical Properties
SolubilitySoluble in Acetone
SensitivityAir sensitive ;Heat sensitive
Specific Rotation[α]-35° (C=0.7,CHCl3)
Melt Point(°C)77-81°C
Molecular Weight399.500 g/mol
XLogP32.600
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count7
Rotatable Bond Count7
Exact Mass399.135 Da
Monoisotopic Mass399.135 Da
Topological Polar Surface Area108.000 Ų
Heavy Atom Count27
Formal Charge0
Complexity642.000
Isotope Atom Count0
Defined Atom Stereocenter Count2
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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