Skip to content
  • Best prices in the industry — without compromising on quality
  • Batch-specific certificates of analysis on every lot
  • Free shipping on Canadian orders over CA$200
  • Priced in Canadian dollars — the figure on the tile is the figure charged
  • Same-day dispatch from within Canada — 2–5 business days nationwide
Onex Peptides, Canadian research peptide supplier
IGF-1 LR3 1mg specification card: catalogue reference, CAS number, molecular formula and purity

Peptides

IGF-1 LR3 1mg — Research Peptide Canada

Sign in for priceSold out

IGF-1 LR3 is an 83-amino-acid analogue of insulin-like growth factor 1 carrying an arginine substitution at position 3 and a 13-residue N-terminal extension. Both modifications reduce binding to IGF binding proteins, substantially extending its active half-life.

Sign in to see pricing and order

Listings and prices are shown to registered researchers only. Registration is free and immediate — no confirmation email.

Create an accountSign in
  • Same-day dispatch before 2 PM PT from British Columbia, Canada
  • Free shipping over CA$200
  • Batch-specific COA with every lot
  • Priced in Canadian dollars

IGF-1 LR3 1mg specification

Release specification

Catalogue number
OP-045
Purity specification
>99%
Fill
1mg

Identity and structure

CAS number
946870-92-4
Molecular weight
9,111 g/mol (9.1 kDa)

Additional specifications

Form
Lyophilized powder
Solubility
Soluble in bacteriostatic water
Shelf Life
24 months from date of manufacture

About IGF-1 LR3 1mg

Native IGF-1 circulates almost entirely bound to IGFBP-3, which controls its availability and clears it within minutes. The Long R3 analogue is engineered specifically to escape that regulation: the R3 substitution disrupts binding protein affinity while the N-terminal extension further reduces it. The result is a molecule with far greater free fraction and a much longer functional half-life, which is why it is the standard IGF-1 research form in cell culture. It is a recombinant protein rather than a synthetic peptide, so handling requirements are stricter.

Storing and handling IGF-1 LR3 1mg

Store lyophilized peptide at -20°C in a dry, dark environment. Reconstitute in bacteriostatic water. Once reconstituted, store at 2-8°C and use within 30 days. Avoid repeated freeze-thaw cycles. Lyophilized powder is stable at room temperature for shipping and short-term storage.

Shipping IGF-1 LR3 1mg within Canada

Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Parcels leave British Columbia, Canada and travel entirely within the country, arriving in two to five business days with a tracking number on every one. Orders over CA$200 ship free; see the shipping page for the dispatch cut-off and transit window.

IGF-1 LR3 1mg questions

Are research peptides like IGF-1 LR3 1mg legal in Canada?

IGF-1 LR3 1mg is supplied here strictly as a reference material for in vitro laboratory research. For laboratory research use only. Not for human or veterinary use. Canadian law turns on what a substance is represented and supplied for, which is why that restriction is on the label, the invoice and every page of this site. The full framework, and what a research-use designation does and does not change, is set out on our legality page.

Is IGF-1 LR3 1mg shipped from within Canada?

Yes. Every IGF-1 LR3 1mg order leaves British Columbia, Canada and travels entirely within the country. Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Transit after dispatch is 2–5 business days Canada-wide, with a tracking number on every parcel, and orders over CA$200 ship free.

Does IGF-1 LR3 1mg come with a certificate of analysis?

Yes — the certificate for the lot in your box, not a representative certificate for a different batch. Every IGF-1 LR3 1mg lot is released against a >99% HPLC specification, and the document carries the lot number, the issuing laboratory and the analytical method. Certificates are not published on this site; if you need another copy, ask us for it by lot number.

How is IGF-1 LR3 1mg supplied and stored?

As a lyophilised powder in a sealed vial, which is the form that survives shipping without a cold chain. Unopened vials are stored away from light and moisture; the storage and handling page covers the laboratory conditions in full. We publish no dosing, reconstitution volumes or administration guidance of any kind.

What fill is IGF-1 LR3 1mg supplied in?

IGF-1 LR3 1mg is supplied in a single 1mg fill, released against a >99% specification.

Related peptides in Canada

All Peptides →