IGF-1 LR3 vs IGF-DES
IGF-DES is cheaper per mg here: $1.56 per mg at its best-priced strength (IGD) against $20.46 per mg for IGF-1 LR3 (IG1), 92 percent less. IGF-1 LR3 is offered in 2 strengths (0.1mg to 1mg), IGF-DES in 1; 1 and 0 of those are on the shelf today.
Prices and stock checked · USD per box of ten · freight included from $1,000.00 an order · COA per batch · research use only
Two recombinant analogues of the same 70-residue hormone, going in opposite directions: LR3 adds a 13-residue N-terminal extension and swaps glutamate 3 for arginine, reaching 83 residues; DES(1-3) removes the first three residues, leaving 67. Both keep the three disulfides and the one methionine, and both certificates carry an endotoxin line because both are made in E. coli. Both masses are quoted on the batch certificate rather than the sheet: about 9111 and about 7372.
| IGF-1 LR3 | IGF-DES | |
|---|---|---|
| Range | Growth & IGF | Growth & IGF |
| Strengths offered | 2: 0.1mg, 1mg | 1: 2mg |
| Price per box of ten | $31.16 to $204.64 | $31.16 |
| Best price per mg | $20.46 per mg (IG1) | $1.56 per mg (IGD) |
| Dearest price per mg | $31.16 per mg (IG01) | $1.56 per mg (IGD) |
| On the shelf today | 1 of 2 strengths | 0 of 1 strengths |
| Form | Lyophilised powder | Lyophilised powder |
| Average mass | 9117.6 | 7371.5 |
| CAS number | 946870-92-4 | 112603-35-7 |
| Release limit | Purity ≥ 98.0 % by RP-HPLC | Purity ≥ 98.0 % by RP-HPLC |
Every strength of both
| Code | Compound | Strength | Per box | Per unit | Stock |
|---|---|---|---|---|---|
| IG01 | IGF-1 LR3 | 0.1mg x 10 vials | $31.16 | $31.16 per mg | Made to order, 2 weeks |
| IG1 | IGF-1 LR3 | 1mg x 10 vials | $204.64 | $20.46 per mg | In stock |
| IGD | IGF-DES | 2mg x 10 vials | $31.16 | $1.56 per mg | Made to order, 2 weeks |
Questions
Which is cheaper per mg, IGF-1 LR3 or IGF-DES?
IGF-DES, at $1.56 per mg for its best-priced strength (IGD) against $20.46 per mg for IGF-1 LR3 (IG1), 92 percent less. Compare at the vial size you will actually use; the gap changes with strength.
Which comes in more strengths?
IGF-1 LR3, with 2 against 1. Every strength is a separate line with its own code, price and stock state.
Can IGF-1 LR3 and IGF-DES go in one order?
Yes. Any lines can share an order; the minimum is $300 of goods per order, or $100 on a first order, and one sealed box of ten per line. Lines on the shelf ship in 1 to 2 business days; made-to-order lines follow in about two weeks, at no extra freight.
Are they tested to the same specification?
Yes: purity not less than 98.0 percent by RP-HPLC, identity by mass, water content, net content within 5 percent of label, and a retest date, with a certificate of analysis per batch. What differs is what each certificate has to look for, which is set by the molecule and described on each compound’s own page.
Structural facts from each compound’s sheet and profile; prices and stock from the list at the moment this page was opened. How to compare strengths on price.