Phenyl isothiocyanate reacts with the free amino terminus; acid cleaves the derivatised residue; it is identified against standards; the shortened protein goes round again. Each cycle has a small inefficiency, so the signal fades after a few dozen residues, which is enough to read the extension and the start of the core.
Mass spectrometry has largely replaced it for whole-sequence work, but it remains definitive for the amino terminus.
That the chain starts where the design says it should, with the extension; that the extension is complete and not clipped; and that the junction with the IGF-1 sequence is correct. A product that read Gly-Pro-Glu from the first cycle would be native IGF-1, not the analogue. A blocked terminus, which stops the reaction, would indicate a modification.
The method cannot see the rest of the molecule and is used alongside mass and mapping.
Reported as the first several residues matching the expected sequence. Where it is run, it is the cleanest confirmation that the product is the analogue and not the parent.
IGF-1 LR3 is supplied by REVIVE LAB UAE for laboratory research use only, with identity and purity documented for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| IGF-1 LR3 Pack | 1 mg | AED 650 | In stock |
Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.
Phenyl isothiocyanate reacts with the free amino terminus; acid cleaves the derivatised residue; it is identified against standards; the shortened protein goes round again. Each cycle has a small inefficiency, so the signal fades after a few dozen residues, which is enough to read the extension and the start of the core.
No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.
Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.
Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.