Stable Isotope Standards
Caffeine-13C3 Stable Isotope Standard
Synonyms: 1,3,7-Trimethyl-13C3-xanthine
Labelled internal standard for LC-MS/MS quantitation and isotope-dilution assays.
CAS 78072-66-9Analytical method note
- CAS Number
- 78072-66-9
- Molecular Formula
- 13C3C5H10N4O2
- Molecular Weight
- 197.16 g/mol
- HPLC Purity
- ≥ 99.0% (HPLC verified)
- Appearance
- White powder
- Storage
- Store at 2–8 °C, desiccated.
Description
Isotopically labelled internal standard with ≥ 99 atom % 13C enrichment reported on the lot COA.
Supplied for in-vitro laboratory research and analytical testing only. Not for human or veterinary use, consumption, or diagnostic purposes.
Track A — Micro-retail
Milligram quantities
Stocked analytical quantities with transparent pricing, dispatched with lot COA.
No card payment. Orders settle in cryptocurrency (USDT, BTC or XMR) after the proforma invoice is issued.
Track B — Bulk wholesale
100 g — 1 kg+
Bulk supply is quoted individually. Pricing is not published: it depends on volume, required purity specification, packaging, documentation scope and delivery window.
- · Volume tiers from 100 g to 1 kg and above
- · Multi-lot supply agreements and scheduled release
- · Extended documentation packet for B2B formulators
Restricted to verified research institutions and corporate entities.
Fulfillment
- Dispatch
- 1–2 business days after settlement clears
- Courier
- DHL / FedEx / UPS express, tracked, signature required
- Packaging
- Amber vial under argon in a plain, unbranded, tamper-evident outer pack
- Documentation
- Accurate customs invoice, HS code, lot COA and SDS in the pouch
- Transit loss
- One free reship or a full crypto refund
Caffeine-13C3 · 1 mg
$132.00