99% HPLC Assay GS-441524 Powder CAS 1191237-69-0 Lot-Traced Moisture-Safe
Product Description
Starting material decides how much of a study can be trusted. If the reference powder carries two or three percent of related substances, every number downstream inherits that error, and careful technique cannot recover it. Our GS-441524 powder is synthesised to pharmaceutical grade and assayed at 99.0% by HPLC UV (CAS 1191237-69-0), with the molecular ion checked at 291.26 against the C12H13N5O4 formula written on the batch sheet.
What arrives is a fine white crystalline powder, free of lumps and colour drift, that dissolves cleanly and behaves the same way from one vial to the next. Each lot is shipped with an actual chromatogram rather than a reprinted percentage figure. Retention time, peak area and the individual related substances are all listed, so you can see where the impurity sits on the trace and judge for yourself whether it will interfere with your own method.
Features
Product Name: GS-441524 Powder
Grade: Pharmaceutical Grade
CAS Number: 1191237-69-0
Molecular Formula: C12H13N5O4
Molecular Weight: 291.26 Assay: 99.0% (HPLC UV)
Water Content: low, reported per lot Shelf Life: 24 months, sealed, 2–8°C
Technical Parameters
| Property | Details |
|---|---|
| Appearance | Fine white crystalline powder |
| CAS Number | 1191237-69-0 |
| Assay (HPLC UV) | 99.0% |
| Loss on Drying | Reported per lot |
| Related Substances | Individually listed by retention time |
| Heavy Metals | Controlled, reported per lot |
| Test Method | HPLC UV with MS confirmation |
| Storage | 2–8°C, dry, protected from light |
| Packing | Double LDPE bag inside foil pouch, desiccant added |
Functional Advantages & Applications
Lot-level traceability: the number on the bag keys back to the chromatogram and the weighing record, which is what an auditor or a reviewer actually asks for.
Method building without rework: consistent retention time and a clean baseline let you set your own HPLC conditions instead of re-developing them around a noisy reference.
Predictable weighing: the powder is uniform and low in static, so it transfers into a tared vessel without clinging to the paper.
Common uses are HPLC method development and validation, where a solid of known purity brackets the calibration curve; in-vitro RdRp inhibition assays that need an exact starting concentration; accelerated stability trials on the powder itself; and small formulation pilots such as premix and capsule-fill trials before a scale-up decision.
FAQ
Q: How do I know the purity figure is real?
A: You get the chromatogram for the lot you received, plus the MS confirmation page. Peak area and the impurity list are on the same sheet.
Q: Is anything mixed into the powder?
A: No. It is a raw pharmaceutical intermediate with nothing added for flow or bulking.
Q: How is it shipped?
A: International express, typically 3–5 days in transit. Outer carton carries no product markings.
