HCG (Human Chorionic Gonadotropin) Testing Services
HCG is a glycoprotein hormone made of an alpha and a beta subunit. It is studied in reproductive endocrinology and appears in compounded formulations where identity verification matters.
Research Applications
Common research areas for HCG (Human Chorionic Gonadotropin)
- Reproductive endocrinology research
- Gonadotropin pharmacology
- Compounded HCG QC
Peptide Information
Molecular details and sample requirements
Sequence / Structure:
Alpha + beta subunit glycoprotein
Molecular Weight
~36.7 kDa
Formula
Glycoprotein
Recommended Purity
≥95%
Sample Size
1 sealed vial
Our HCG (Human Chorionic Gonadotropin) Testing Services
Comprehensive analytical testing to ensure HCG (Human Chorionic Gonadotropin) quality and purity
Purity Testing
HPLC analysis to verify HCG (Human Chorionic Gonadotropin) purity levels
Identity Verification
Mass spectrometry to confirm molecular identity
Third-Party Verification
Independent COA verification for HCG (Human Chorionic Gonadotropin)
Certificate of Analysis
Official US laboratory documentation
Ready to test your peptides?
Send your peptide name, sample count, and the tests you need. We return a fixed-price quote, usually within one business day.
- validated analytical methods, independent of any supplier
- 3–5 business days for eligible routine testing
- Traceable COA with chromatograms and method parameters
HCG (Human Chorionic Gonadotropin) Testing Methodology
Our analytical workflow for HCG (Human Chorionic Gonadotropin) follows USP <1225> guidance for validated chromatographic methods. Each lot is processed by a credentialed analyst with documented chain of custody.
Step 1
Sample intake & chain of custody
Confirm sample requirements and handling before shipping your HCG (Human Chorionic Gonadotropin) sample. Most tests require one 10 mg sealed vial. Samples are logged at our Florida laboratory for analysis.
Step 2
Reverse-phase HPLC purity
HCG (Human Chorionic Gonadotropin) is dissolved in mobile phase and run on a C18 column with a water/acetonitrile gradient containing 0.1% TFA. UV detection at 214 nm quantifies the main peak and any related impurities.
Step 3
LC-MS identity confirmation
An aliquot is analyzed by liquid chromatography-mass spectrometry. The observed monoisotopic mass is compared against the theoretical molecular weight (~36.7 kDa) for HCG (Human Chorionic Gonadotropin) to confirm identity.
Step 4
Impurity profiling & reporting
Related substances, truncations, and oxidation products are quantified. Findings are compiled into a signed Certificate of Analysis with chromatograms, mass spectra, and analyst interpretation.
HCG (Human Chorionic Gonadotropin) Purity Notes
Recommended research-grade purity for HCG (Human Chorionic Gonadotropin) is ≥95%. Lot-to-lot variation is common with solid-phase synthesis, so independent verification matters.
Common impurities to watch
- Truncated sequences from incomplete coupling
- Deletion peptides missing one or more residues
- Oxidation of methionine, tryptophan, or cysteine
- Residual TFA, acetate, or solvent counter-ions
- Aggregates and dimers from improper storage
What our COA confirms
- Main peak purity by HPLC area %
- Observed vs theoretical mass (~36.7 kDa)
- Named impurities ≥ 0.1% area
- Net peptide content where applicable
- Method, column, and instrument metadata
HCG (Human Chorionic Gonadotropin) Handling, Storage & Safety
Guidance below is for laboratory and research personnel only. HCG (Human Chorionic Gonadotropin) is supplied for research use and is not intended for human or veterinary use.
Storage
Store lyophilized HCG (Human Chorionic Gonadotropin) at -20 °C, protected from light and moisture. After reconstitution, aliquot and store at -80 °C; avoid repeated freeze-thaw cycles.
Reconstitution
Reconstitute in bacteriostatic or sterile water in a clean environment. Allow vials to reach room temperature before opening to prevent moisture condensation on the powder.
PPE & shipping
Handle with gloves, lab coat, and eye protection. Ship samples to ACS overnight on dry ice or cold packs in a rigid, leak-proof container with a packing slip referencing your quote.
This page is informational and does not constitute medical advice. Consult your institution's safety officer and SDS before working with HCG (Human Chorionic Gonadotropin).
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