B2129
L-Aspartic acid β-benzyl ester
≥98%
Synonym(s):
β-Benzyl L-aspartate, L-Aspartic acid 4-benzyl ester
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| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 25 g | Check Cart for Availability | MXP 6,904.00 MXP 5,178.00 |
About This Item
Linear Formula:
C6H5CH2OCOCH2CH(NH2)COOH
CAS Number:
Molecular Weight:
223.23
NACRES:
NA.26
PubChem Substance ID:
UNSPSC Code:
12352209
EC Number:
218-541-8
MDL number:
Beilstein/REAXYS Number:
1983183
MXP 5,178.00
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Product Name
L-Aspartic acid β-benzyl ester,
assay
≥98%
Quality Level
form
powder
color
white
mp
225 °C
application(s)
peptide synthesis
storage temp.
−20°C
SMILES string
N[C@@H](CC(=O)OCc1ccccc1)C(O)=O
InChI
1S/C11H13NO4/c12-9(11(14)15)6-10(13)16-7-8-4-2-1-3-5-8/h1-5,9H,6-7,12H2,(H,14,15)/t9-/m0/s1
InChI key
VGALFAWDSNRXJK-VIFPVBQESA-N
Application
L-Aspartic acid β-benzyl ester is used in the synthesis of peptides with a 1,4-diazepine-2,5-dione ring structure and in development of block copolymers.
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form powder | form powder | form powder or crystals |
| assay ≥98% | assay ≥98% | assay ≥98% (TLC) | assay ≥97.0% (KT) |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. - |
| color white | color white to off-white | color white to off-white | color white to faint beige |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mp 225 °C | mp - | mp 95-99 °C | mp - |
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Chander Amgoth et al.
Journal of materials chemistry. B, 8(40), 9258-9268 (2020-09-25)
Herein, the synthesis of an amino-acid-based di-block copolymer (di-BCP) in-between an l-glutamic acid-5-benzyl ester and l-aspartic acid-4-benzyl ester [(l-GluA-5-BE)-b-(l-AspA-4-BE)] has been reported. However, the synthesis of di-BCP of [(l-GluA-5-BE)-b-(l-AspA-4-BE)] was carried out through the facile modified ring-opening polymerization (ROP) without
Block copolymer design for camptothecin incorporation into polymeric micelles for passive tumor targeting.
Opanasopit P, Yokoyama M, et al.
Pharmaceut. Res., 21, 2001-2008 (2004)
Helga Süli-Vargha et al.
Journal of peptide science : an official publication of the European Peptide Society, 13(11), 742-748 (2007-09-14)
The Fmoc-based SPPS of H-Xaa-Asp(OBzl)-Yaa-Gly-NH(2) sequences results in side reactions yielding not only aspartimide peptides and piperidide derivatives, but also 1,4-diazepine-2,5-dione-peptides. Evidence is presented to show that the 1,4-diazepine-2,5-dione derivative is formed from the aspartimide peptide. The rate of this
Global Trade Item Number
| SKU | GTIN |
|---|---|
| B2129-25G | 04061832421346 |