Teriparatide is the 1-34 fragment of human parathyroid hormone, a linear 34-residue peptide with a free N-terminus and a free C-terminal acid. A USP monograph exists for teriparatide.
Teriparatide testing at Vanguard Laboratory: purity, quantity and identity from $250 per vial, with results in 3 to 5 business days; sterility 14 days.
On this page: Testing · Compound data · Sequence · How we test it · Forms and references · FAQ
Every package includes purity, quantity, identity and a solubility check. Raw powder purity is $200 for a 50 mg sample.
$250
$550
$700
Each test can be added to a package or ordered on its own. Results arrive in 3 to 5 business days.
Included in every package
How pure the Teriparatide is and how much is in the vial: purity in area percent, quantity in mg per vial against the label. Details
Included in every package
Whether the sample contains Teriparatide, compared with a reference standard. Reported as match or no match. Details
Quoted
Whether the molecular mass matches Teriparatide, which helps catch look-alike products. Details
$70
How much TFA, acetate or chloride the powder contains. Other salt forms are quoted. Details
$150
Sterility for injectables: 1–10 unopened vials at the same sterility-test price. Bioburden for other forms. Included in Gold and Elite. Details
$200 per vial
Purity and routine identity by retention time and UV spectrum against a reference standard, without quantity: no mg per vial, concentration or label-claim result. 1 vial; 3 to 5 business days. LC-MS is quoted separately. Details
$360 per vial
Screen for semaglutide, tirzepatide and retatrutide without naming the expected peptide. Identity, amount and purity where reportable. Blind GLP-1 panel
Quoted
Which cysteines are paired, by Orbitrap high-resolution mass spectrometry of the digested peptide.
Quoted
Charge, polarity and size variants by ion-exchange, hydrophilic interaction and size-exclusion chromatography, alongside routine HPLC purity.
Quoted
Hydrolysis and amino acid analysis, to confirm composition and net peptide content.
Quoted
D- and L-forms of the amino acids, to check for racemization.
Orders of ten or more samples are 10% off.
linear 34-residue peptide, human parathyroid hormone (1-34)
C181H291N55O51S2
4117.7 g/mol (PubChem rounds to 4118)
Monoisotopic 4115.13 Da
52232-67-4
Modifications: none; free N-terminal amine and free C-terminal carboxylic acid. Two methionines (Met8 and Met18), no cysteine and no disulfide bond.
Other names: hPTH(1-34), rhPTH(1-34), parathyroid hormone (1-34) human
Teriparatide runs on the lab’s peptide purity and quantity method: reversed-phase HPLC on a C18 column with a water and acetonitrile gradient containing 0.1% TFA, and UV detection at 214 to 220 nm. Purity is the main peak’s share of the total peak area, quantity is measured against a reference standard, and identity is confirmed by retention time and UV spectrum against the same standard. LC-MS confirmation of the intact mass is quoted separately.
A USP monograph exists for teriparatide. The method above is Vanguard’s own peptide method, not the monograph procedure.
Send 1 vial for Level 1 Silver, 3 vials for Level 2 Gold or 4 vials for Level 3 Elite; raw powder purity needs a 50 mg sample. Results arrive in 3 to 5 business days; sterility takes 14 days.
Yes. Teriparatide has two methionines, at positions 8 and 18. Oxidized forms usually separate from the main peak by reversed-phase HPLC, so they lower the purity result, and LC-MS (quoted) can confirm the 16 Da mass increase that oxidation adds.
Yes. Full-length parathyroid hormone has 84 residues and a much higher mass, so it differs from teriparatide in retention time and, by LC-MS, in mass.
Quantity is reported as teriparatide peptide in mg per vial. The acetate or TFA counterion adds weight to the powder but not to the peptide result; the counterion test ($70) measures it if you need the salt content.
Start an order online, or send the compound name and the tests you need for a quote.
