Research use only. Not for human consumption. ■ Cold chain shipped at 2–8°C ■ Complimentary shipping over $200.00
Zenith Labs
ZENITH LABS TB-500 10 MG RESEARCH USE ONLY LOT NL2S0S002 LOT NL2S0S002 · 2–8°C · REL 05 / 2025
7 residues · Lyophilised powder

TB-500

10 MG 99.2% RP-HPLC In stock · 28 vials
CAS number77591-33-4
Registry number is for the parent thymosin β4; supplied material is the acetylated LKKTETQ fragment.
Molecular formulaC38H68N10O14
Molecular weight889.02 g/mol
SequenceAc-LKKTETQ
AppearanceWhite lyophilised powder
SolubilityWater; 0.1% acetic acid
Released lotNL2S0S002
Manufactured / expiry05 / 2025  /  05 / 2027
Storage2–8°C · do not freeze · protect from light
$74.00 $74.00 per vial
1
Volume pricing · per line
1+3+5+10+
$74.00$69.56$65.12$59.20
  • Lot-keyed certificate of analysis — open COA for NL2S0S002
  • Cold chain at 2–8°C with temperature indicator
  • Complimentary shipping over $200.00 · dispatched within the United States
Primary sequence

7 residues.

Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln

One-letterAc-LKKTETQ
Residue count7
PubChem CID16132341
H₂N COOH Leu · Leucine · position 1 L Lys · Lysine · position 2 K Lys · Lysine · position 3 K Thr · Threonine · position 4 T Glu · Glutamic acid · position 5 E Thr · Threonine · position 6 T Gln · Glutamine · position 7 Q
Analytical release · lot NL2S0S002

The trace, not the adjective.

Separated by reversed-phase HPLC and read at 220 nm; identity confirmed by ESI‑MS against theoretical mass.

Purity (RP-HPLC)99.2%
Identity (ESI-MS)889.5 [M+H]⁺
Water (Karl Fischer)3.6%
Acetate content6.9%
Net peptide content84.1%
Endotoxin< 5 EU/mg
Full certificate →
RP-HPLC · LOT NL2S0S002 TB-500
99.2% 0 RETENTION TIME (MIN) mAU
COLUMN  C18, 4.6 × 250 MM FLOW  1.0 ML/MIN DETECT  UV 220 NM

Other compounds

All materials are supplied for in vitro laboratory research by qualified professionals. Not for human consumption. Not for veterinary, diagnostic or therapeutic use.