Molar absorptivity of a peptide at 280 is the sum over its tryptophans, tyrosines and disulfide bonds. MOTS-c has one, two and none, giving about 5,500 plus 2,980, or 8,480. Concentration in moles per litre is absorbance divided by that figure and by the path length in centimetres. At 2,174 grams per mole this converts to mass concentration.
The values are for the residues in a folded protein; in a small unstructured peptide they are close but not exact, and a few per cent error is normal.
Every molecule carrying the aromatic residues, including oxidised peptide, truncated peptide that retains them, and any aromatic impurity — benzyl alcohol from bacteriostatic water absorbs in this region and must be blanked. It reports total aromatic content, not purity. Chromatography reports purity.
Tryptophan oxidation reduces absorbance at 280 and shifts it, so a heavily oxidised sample reads low.
Because it is an analytical property that distinguishes this peptide from most of the catalogue and because the blank requirement with the supplied diluent is a practical fact worth stating. It is not a procedure for any purpose.
MOTS-c is supplied by REVIVE LAB UAE for laboratory research use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| MOTS-c Pack | 40 mg | AED 950 | 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.
Molar absorptivity of a peptide at 280 is the sum over its tryptophans, tyrosines and disulfide bonds. MOTS-c has one, two and none, giving about 5,500 plus 2,980, or 8,480. Concentration in moles per litre is absorbance divided by that figure and by the path length in centimetres. At 2,174 grams per mole this converts to mass concentration.
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.