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Chemical structure of Cyclo(-Asp-Phe)

GA21310

Cyclo(-Asp-Phe)

Also known as 2-[(2S,5S)-5-benzyl-3,6-dioxopiperazin-2-yl]acetic acid

Aspartame Impurity A, the diketopiperazine cyclo(Asp-Phe), is the major degradation product of aspartame in food, e·g· during heating· Hence, the pure material is an important reference substance for the analysis of foodstuffs containing this sweetener

ChemicalCAS5262-10-2MW262.27FormulaC13H14N2O4
CAS number
5262-10-2
Molecular weight
262.27
Formula
C13H14N2O4
Solubility
Soluble in DMSO
InChIKey
VNHJXYUDIBQDDX-UWVGGRQHSA-N
Catalogue number
GA21310
Brand
GLPBIO
Computed properties PubChem CID 111054 · XLogP 0.2 · TPSA 95.5 Ų · H-bond donors 3
XLogP
0.2
TPSA
95.5 Ų
H-bond donors
3
H-bond acceptors
4
Rotatable bonds
4
Heavy atoms
19

SMILES C1=CC=C(C=C1)C[C@H]2C(=O)N[C@H](C(=O)N2)CC(=O)O

Computed descriptors from PubChem (CID 111054), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

Ordering in Israel

Lead time
Ships from the manufacturer to your lab in 8–14 business days; customs and cold chain handled by LABO Scientific.
Pricing
Quoted in ILS, excl. VAT. Add the item to your quote and we confirm the final price, usually the same business day.
Documents
Lot certificate of analysis and manufacturer SDS are emailed with your order confirmation.
Who we serve
Universities, hospitals and biotech companies across Israel. Research use only — not for diagnostic or therapeutic use.