GHRP-2 vs GHRP-6
Strength for strength, GHRP-2 costs less per mg at the two strengths both are offered in: at 5mg $0.852 per mg against $0.956 (G25 in 50-box lots, G65 in 50-box lots), at 10mg $0.727 per mg against $0.783 (G210 in 50-box lots, G610 in 50-box lots). GHRP-2 is offered in 2 strengths (5mg to 10mg), GHRP-6 in 2 (5mg to 10mg). Neither is on the shelf today.
Prices revised · USD per box of ten · freight included to US addresses from $1,000 of goods · COA per batch · research use only · New to us? What can be checked before you pay
What differs between GHRP-2 and GHRP-6
Two hexapeptide amides that differ at two positions: GHRP-6 has histidine and D-tryptophan at its first two residues, GHRP-2 has D-alanine and D-2-naphthylalanine. That leaves GHRP-6 with two tryptophans to GHRP-2’s one, so GHRP-6 has more that can oxidise. The last four residues, Ala-Trp-D-Phe-Lys-NH2, are the same in both. Masses 818.0 and 873.0; strengths and per-milligram prices below.
| Detail | GHRP-2 | GHRP-6 |
|---|---|---|
| Best price per mg | $0.727 per mg (G210, 50 boxes) | $0.783 per mg (G610, 50 boxes) |
| In 50-box lots, per box | $42.59 to $72.72 | $47.80 to $78.32 |
| Strengths offered | 2: 5mg, 10mg | 2: 5mg, 10mg |
| Highest price per mg | $0.852 per mg (G25, 50 boxes) | $0.956 per mg (G65, 50 boxes) |
| On the shelf today | 0 of 2 strengths | 0 of 2 strengths |
| Range | Growth & IGF | Growth & IGF |
| Also called | pralmorelin and KP-102 | Hexapeptide-2, SKF-110679 and U-75799E |
| Form | Lyophilised powder | Lyophilised powder |
| Molecular weight | 818.0 g/mol | 873.0 g/mol |
| Formula | C45 |
C46 |
| CAS number | 158861-67-7 | 87616-84-0 |
| Release limit | Purity ≥ 98.0 % by RP-HPLC | Purity ≥ 98.0 % by RP-HPLC |
Each line’s own page: GHRP-2 and GHRP-6. Reading either certificate: how to read a peptide COA. Checking a batch: verify a batch number. Every line priced: the price list. Checking another supplier’s quote: the price per mg calculator.
Strength for strength
Every strength both are offered in, per mg, the lower figure in bold; stock as this page was opened.
| Strength | GHRP-2 | GHRP-6 |
|---|---|---|
| 5mg | $0.852 per mg (lower) (G25, special order, 50 boxes) | $0.956 per mg (G65, special order, 50 boxes) |
| 10mg | $0.727 per mg (lower) (G210, special order, 50 boxes) | $0.783 per mg (G610, special order, 50 boxes) |
Every strength of both
Compared elsewhere
Ipamorelin vs GHRP-2
At 10mg: $0.553 per mg against $0.727 (GHRP-2, 50-box lots); 3 strengths against 2.
GHRP-2 vs Hexarelin
At 5mg: $0.852 per mg against $1.454, both in 50-box lots; 2 strengths each.
CJC-1295 no DAC vs GHRP-2
At 10mg: $1.747 per mg against $0.727 (GHRP-2, 50-box lots); 3 strengths against 2.
Ipamorelin vs GHRP-6
At 10mg: $0.553 per mg against $0.783 (GHRP-6, 50-box lots); 3 strengths against 2.
GHRP-6 vs Hexarelin
At 5mg: $0.956 per mg against $1.454, both in 50-box lots; 2 strengths each.
Questions
What is the difference between GHRP-2 and GHRP-6?
Two hexapeptide amides that differ at two positions: GHRP-6 has histidine and D-tryptophan at its first two residues, GHRP-2 has D-alanine and D-2-naphthylalanine. That leaves GHRP-6 with two tryptophans to GHRP-2’s one, so GHRP-6 has more that can oxidise.
Which salts are on file for GHRP-2 and GHRP-6?
Different ones. The GHRP-2 salt that holds a USAN and a JAN is pralmorelin dihydrochloride (UNII R4AVR27MM8, CAS 158827-34-0), 890.9 with its two HCl, which are 8.2 percent of that weight; GHRP-6’s acetate is filed as the triacetate (UNII USP2MY0E7I, CAS 145177-42-0), 1,053.2, with acetic acid 17.1 percent of it. Both lines this page compares are acetates, and both sheets quote the peptide alone, 818.0 and 873.0, whose own numbers are 158861-67-7 and 87616-84-0; a number filed for a salt names that salt.
Which part of the chain do GHRP-2 and GHRP-6 share?
The last four residues, Ala-Trp-D-Phe-Lys-NH2: an L-tryptophan at 4, a D-phenylalanine at 5 and the lysinamide that ends both. In front of them GHRP-2 puts D-Ala-D-2-Nal and GHRP-6 His-D-Trp, so both carry a D residue at position 2, and only GHRP-6 opens with a histidine; both chains come to about +2 near neutral pH. GHRP-2 has one tryptophan to oxidise, at 4, and GHRP-6 two, at 2 and 4.
Which is cheaper per mg, GHRP-2 or GHRP-6?
Strength for strength, GHRP-2 costs less per mg at the two strengths both are offered in: at 5mg $0.852 per mg against $0.956 (G25 in 50-box lots, G65 in 50-box lots), at 10mg $0.727 per mg against $0.783 (G210 in 50-box lots, G610 in 50-box lots).
What are the molecular weights of GHRP-2 and GHRP-6?
GHRP-2’s calculated average mass is 817.99 g/mol and GHRP-6’s 873.03 g/mol, 55.04 apart; in electrospray the ions come at m/z 819.0 and 410.0 (1+ and 2+) for GHRP-2 against 874.0 and 437.5 (1+ and 2+) for GHRP-6. On each certificate the measured mass is matched to the line’s calculated average mass, within about one unit, as how to read a peptide COA sets out.
Are GHRP-2 and GHRP-6 made to the same specification?
Yes: both are supplied to purity not less than 98.0 percent by RP-HPLC and net content within 5 percent of label, and each certificate reports those with a measured mass, matched to the calculated figure on each sheet. The retest date is on the batch record. What differs is each molecule’s own chemistry, described on its compound 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.