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Chemical structure of ALFA-tag

GC76477

ALFA-tag

Also known as (2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-4-methylpentanoyl]amino]-4-carboxybutanoyl]amino]-4-carboxybutanoyl]amino]-4-carboxybutanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxybutanoyl]amino]pentanedioic acid

ALFA-tag is a small and stable α-helical structure composed of 15 amino acids

ChemicalCAS2413353-86-1MW1686.87FormulaC69H123N25O24
CAS number
2413353-86-1
Molecular weight
1686.87
Formula
C69H123N25O24
Solubility
H2O： 23·81 mg/mL (14·11 mM; adjust pH to 2 with 1 M NaOH)
InChIKey
GDPMSDPMZSVCFH-DTGKHZLWSA-N
Catalogue number
GC76477
Brand
GLPBIO
Computed properties PubChem CID 171904670 · XLogP -10.6 · TPSA 860 Ų · H-bond donors 28
XLogP
-10.6
TPSA
860 Ų
H-bond donors
28
H-bond acceptors
29
Rotatable bonds
61
Heavy atoms
118

SMILES C[C@H]([C@@H](C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CO)N)O

Computed descriptors from PubChem (CID 171904670), 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.