By PathGene Biotech · Technically reviewed by Alex Huang
Why "SAMe" on a Label Doesn't Tell You Which Molecule You're Actually Getting
Define the SAMe material in your purchase specification
A useful bulk inquiry states the salt name, CAS, composition requirements and assay basis. PathGene's SAMe tosylate sulfate product is listed under CAS 97540-22-2, with batch documentation and evaluation samples.
Three metrics for a clear technical specification
| Metric | Specification focus |
|---|---|
| Salt assay | Acceptance limits for the specified salt. |
| SAM-component content | Component content, method and reporting basis. |
| S,S-isomer criterion | Project ratio, applicable analytical method and acceptance limit. |
Discuss each metric separately when comparing quotations. This keeps the technical brief aligned with the offered material and the required batch documents.
Published batch composition
PG03-260516 reports SAM 51.2%, sulfate 25.4% and p-toluenesulfonic acid 23.1%. Salt assay is recorded separately against a 95.0–105% specification, with a complying result. Request the offered lot COA during order review.
Packaging and formulation requirements
For tablet, capsule or blend development, include the dosage form, processing conditions, moisture-control packaging and required storage or transport conditions in your project brief. Agree the sample-evaluation and stability plan for the intended formula.
Request a sample or bulk quotation
Send quantity, destination, technical specifications, packaging and delivery requirements. If your project includes an S,S-isomer criterion, add the method and acceptance limit to the same technical brief.
See the SAMe tosylate sulfate product and quality documentation, or contact PathGene for a bulk quotation.
Frequently Asked Questions
What is the difference between salt assay and SAM-component content?+
Salt assay describes the specified salt, while SAM-component content is a separate composition measurement. The batch COA reports these items separately so buyers can use the relevant basis in their specification.
Which composition results are available in the published batch record?+
PG03-260516 reports SAM 51.2%, sulfate 25.4%, p-toluenesulfonic acid 23.1% and a complying salt-assay result. Request the offered batch COA for order review.
How should an S,S-isomer requirement be specified?+
State the required ratio, analytical method, reporting basis and acceptance limit. Discuss the applicable batch testing and documentation as part of the project specification.
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