99.3%Purity by HPLC

Quantity: 5 mg per vial
CAS: 77591-33-4
Mol. weight: 889.0 g/mol
Formula: C38H68N10O14
Current lot: TB-2609-24

5 mg TB-500 vial, lyophilized powder, white flip-off cap, dark backdrop, 99.3% HPLC label

TB-500 Synthetic Thymosin Beta-4 Fragment, 5 mg Vial

Quantity per vial5 mg
FormLyophilized powder
Purity≥99% by HPLC
Molecular formulaC38H68N10O14

$79.99

TB-500, a synthetic thymosin beta-4 fragment: 5 mg lyophilized powder in a sealed 3 mL glass vial, ≥99% by HPLC with a certificate of analysis per lot.

120 in stock

Free shipping over $400Ships from CanadaSecure checkoutPrices in CAD

Research dataResearch use only

Purity (HPLC): 99.3%
Quantity: 5 mg per vial
Form: Lyophilized powder in a sealed 3 mL glass vial
Molecular formula: C38H68N10O14
Molecular weight: 889.0 g/mol
CAS number: 77591-33-4
Storage: Lyophilized powder: store sealed at -20 °C, protected from light and moisture. Ships at ambient temperature with desiccant.

Certificate of analysisThird-party HPLC and mass-spec report for this lot

For laboratory research use only. Not for human or veterinary use, not for diagnostic or therapeutic use, not for human consumption. Sold to qualified researchers and institutions for in-vitro research. Handle in accordance with your institution's safety guidelines.

Sequence7 residues

LKKTETQ

hydrophobicpolaracidicbasicGly / Pro

Lot panel

Lot numberTB-2609-24

Tested2026-09-16

MethodsHPLCMS

Download the certificatePDF · HPLC and MS report for this lot

-20 °Cstore sealed, frozen
Lightprotect from light
Drydesiccant, keep dry

1Packed coldSealed vial, insulated mailer, desiccant
2Shipped trackedNext business day
3Straight to the freezerLog the lot against the certificate

Sizes5 mg per vial$16.00/mg 10 mg per vial$13.00/mg

Dosage calculator

Vial content and diluent volume → concentration, volume per draw and insulin-syringe units (U-100).

Vial content (mg)Diluent added (mL)Amount per draw (mcg)

Concentration: —
Volume per draw: —
Syringe units (U-100): —
Draws per vial: —

Laboratory preparation arithmetic (1 mL = 100 units on a U-100 syringe). No guidance on use. For laboratory research only; not for human or veterinary use.

Also known as: Thymosin beta-4 fragment (17-23); Tβ4 fragment All listings for CAS 77591-33-4 →

What HPLC, MS and CoA mean →

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SKU: PEP-TB500-5 Category: Single Peptides Tags: 5 mg vial, glass vial, hplc tested, in vitro research, laboratory reagent, lyophilized powder, single peptides

Each vial holds 5 mg of TB-500, a synthetic fragment of thymosin beta-4, supplied as a lyophilized powder. Purity is ≥99% by HPLC, with identity confirmed by mass spectrometry. A lot-specific certificate of analysis is available for download.

Specifications

Sold for research use only. For laboratory research use only. Not for human or veterinary use.

Compound: TB-500, synthetic fragment of thymosin beta-4
Quantity per vial: 5 mg
Form: Lyophilized powder
Purity: ≥99% by HPLC
Identity confirmation: Mass spectrometry
Molecular formula: C38H68N10O14
Molecular weight: 889.0 g/mol
CAS number: 77591-33-4
Storage: Sealed at -20 °C, protected from light and moisture
Shipping condition: Ambient temperature with desiccant
Ships from: Richmond, BC, insulated mailer with desiccant
Packed dimensions: 8×8×6 cm
Shipping weight: 0.05 kg
Price: $79.99 CAD
Documentation: Lot-specific certificate of analysis, downloadable

Why the ≥99% HPLC figure is paired with mass spectrometry

HPLC gives the purity figure, ≥99%, for the lot in hand. Mass spectrometry confirms identity against the stated molecular weight of 889.0 g/mol. Both appear on the certificate of analysis issued per lot, so the number and the method stay together on one document.

How the -20 °C storage and desiccant keep the powder dry

The lyophilized powder should be stored sealed at -20 °C, protected from light and moisture. Shipment is at ambient temperature with desiccant included in the mailer. The insulated mailer leaves Richmond, BC and carries the desiccant with the vial.

Who the single 5 mg vial suits

This listing is one vial of 5 mg, sold as a single unit at $79.99 CAD. Laboratories ordering by lot can match the vial to its downloadable certificate of analysis through the lot number on the label. Bacteriostatic water and empty vials are not included with this item.

Identity

A synthetic fragment of thymosin beta-4, CAS 77591-33-4. The molecular formula is C38H68N10O14.

Quantity per vial

5 mg of lyophilized powder. One vial ships per unit ordered.

Purity and method

≥99% by HPLC. Identity is confirmed by mass spectrometry.

Lot documentation

A certificate of analysis is issued per lot and available for download. It states identity, purity and test method.

Packed dimensions

The outer package measures 8×8×6 cm. Shipping weight is 0.05 kg, which is the packed weight for the courier and not the net content.

Common questions

Where do I get the certificate of analysis for my lot?

A lot-specific certificate of analysis is available for download, stating purity of ≥99% by HPLC and identity confirmed by mass spectrometry. Match the lot number on the vial label to the document.

How should the vial be stored once it arrives?

Store the lyophilized powder sealed at -20 °C, protected from light and moisture.

How is it shipped, and who may order it?

Vials ship from Richmond, BC at ambient temperature in an insulated mailer with desiccant, in an 8×8×6 cm package. Ordering is limited to laboratories and qualified researchers, for research use only.

How it compares

TB-500 Synthetic Thymosin Beta-4 Fragment, 5 mg Vial next to Selank Synthetic Heptapeptide, 10 mg Lyophilized Vial ($20.00 less) and DSIP Synthetic Nonapeptide, 10 mg Lyophilized Vial ($20.00 less).

	TB-500 Synthetic Thymosin Beta-4 Fragment, 5 mg Vial this page	Selank Synthetic Heptapeptide, 10 mg Lyophilized Vial	DSIP Synthetic Nonapeptide, 10 mg Lyophilized Vial
Price	$79.99	$59.99	$59.99
Quantity	5 mg per vial	10 mg per vial	10 mg per vial
Purity	99.3% (HPLC)	99.3% (HPLC)	99.7% (HPLC)
Molecular weight	889.0 g/mol	751.9 g/mol	848.8 g/mol
Formula	C38H68N10O14	C33H57N11O9	C35H48N10O15
CAS	77591-33-4	129954-34-3	62568-57-4
Form	Lyophilized powder in a sealed 3 mL glass vial	Lyophilized powder in a sealed 3 mL glass vial	Lyophilized powder in a sealed 3 mL glass vial