In-vitro laboratory research and analytical testing use only — verified institutions and corporate entities.

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Impurity Standards

Losartan Azido Impurity Standard (Impurity D)

Synonyms: Losartan Azide Impurity · Azido Losartan

Specified impurity standard for related-substance quantitation and limit testing in losartan drug substance assays.

CAS 138401-24-8Analytical method note

Losartan Azido Impurity Standard (Impurity D) — Impurity Standards
Research use only — not for administration to humans or animals
CAS Number
138401-24-8
Molecular Formula
C22H23ClN10
Molecular Weight
462.94 g/mol
HPLC Purity
≥ 98.5% (HPLC verified)
Appearance
Off-white to pale yellow powder
Storage
Store at −20 °C, desiccated and protected from light.

Description

Losartan Azido Impurity Standard is supplied lot-controlled for use as a marker in related-substance chromatographic methods, with identity and chromatographic purity reported on the Certificate of Analysis.

Applications include HPLC limit testing, relative response factor determination and method validation for impurity control strategies.

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.

Line total$96.00

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
Full shipping & delivery terms

Losartan Impurity D · 1 mg

$96.00