Purity

98.8%

Vial

3 mL × 10

Lot

GPB-4640

Repair · CAS 137525-51-0 · 77591-33-4

BPC+TB

BPC-157 / TB-500 Co-Lyophilised Blend

The pre-filled pen range Ask GpharmaBio for a vial quote

UK & Europe Next-Day Delivery — Order before 1pm.Worldwide Delivery — Estimated delivery within 5–10 days.

The certificate for lot GPB-4640 is published in full further down this page.

Supplied in sealed boxes of 10 vials, one lot to a box. Single vials are not broken out of a box.

Primary sequence

GlyGluProProProGlyLysProAlaAspAspAlaGlyLeuVal + AcSerAspLysProAspMet… (43)

Physical data

Molecular formula: C₆₂H₉₈N₁₆O₂₂ + C₂₁₂H₃₅₀N₅₆O₇₈S
Molecular weight: 1419.56 + 4963.51 g/mol
CAS number: 137525-51-0 · 77591-33-4
Appearance: White to off-white lyophilised cake
Solubility: Soluble in sterile water and 0.9% NaCl
Storage: Lyophilised: −20 °C, desiccated

Certificate of analysis

Lot GPB-4640, in full.

Published here. Nothing to request, nothing behind a form.

GpharmaBio

RESEARCH PEPTIDE LAB

part of GBAGROUP

CERTIFICATE OF ANALYSIS

GPB-4640

PRODUCT: BPC+TB
FILL: 10 mg / 3 mL vial · box of 10
SYNTHESISED: 18 Feb 2026
RELEASED: 26 Feb 2026
RETEST: Feb 2028

COMPOSITION

BPC-157

CAS NUMBER: 137525-51-0
MOLECULAR FORMULA: C₆₂H₉₈N₁₆O₂₂
MOLECULAR WEIGHT: 1419.56 g/mol

Thymosin β4

CAS NUMBER: 77591-33-4
MOLECULAR FORMULA: C₂₁₂H₃₅₀N₅₆O₇₈S
MOLECULAR WEIGHT: 4963.51 g/mol

RP-HPLC, C18 2.7 µm 150 × 4.6 mm · 0.1% TFA / MeCN, 5–65% over 30 min · 1.0 mL/min · DAD 214 nm

Analytical purity scaleRP-HPLC area @ 214 nm

98.8%

Measured, this lot

High purity

Release specification ≥ 98.0%

98.8%

9596979899100

Red rule marks the house release limit. This lot sits 0.8 points above it. Area percent cannot see anything without a chromophore at 214 nm, which is why moisture, counterion and net peptide content are reported separately below.

TEST	RESULT, THIS LOT
RP-HPLC purity — BPC-157	99.0% area @ 214 nm
RP-HPLC purity — TB-500	98.5% area @ 214 nm
Blend ratio (pooled solution)	1.00 : 0.99 by mass
Identity (ESI-MS)	1419.6 and 4963.8, both resolved
Net peptide content	81.1% (combined)
Bacterial endotoxin	< 0.25 EU/mg (LAL)

Security code

J67Z-WBJY

Verified by AUTHENTIX®

This is the sheet for the lot on the shelf — not a representative document. If the lot number moves on before you order, the page moves with it.

Handling

Reconstitute the whole vial at once — the two peptides cannot be separated by partial draw.
Stable ~14 days at 2–8 °C, set by the shorter-lived component.
Do not shake; TB-500 foams and the blend ratio is unaffected but the yield is not.

For laboratory research use only.

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