Research use only
Retatrutide (RETA) Peptide
Retatrutide (RETA) Peptide cost and available sizes below.
Third-party COA published · Ships same day
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Orders ship via UPS 2nd Day Air or UPS Overnight. Orders placed before 2 PM ET Monday–Friday (1 PM ET Saturday) go out the same day; nothing ships on Sundays.
- Preparation form
- Lyophilized powder
- Storage
- Sealed vial, protected from light
- Analytical purity
- >99%
- Intended use
- In vitro research only
Technical data
- CAS
- 2381089-83-2
- Molecular formula
- C221H342N46O68
- Molecular mass
- 4731.33 g/mol
- Length
- 39 residues
- Sequence
- Y-Aib-QGTFTSDYSI-(αMeL)-LDK-K*-AQ-Aib-AFIEYLLEGGPSSGAPPPS-NH2
- Modifications
- Aib at positions 2 and 20
- α-methyl-L-leucine at 13
- Lys17 ε-acylated: AEEA – γ-Glu – C20 diacid
- C-terminal amide
- Form
- Lyophilized powder, sealed glass vial
- Purity
- ≥99% (HPLC) · batch COA
- Storage
- −20 °C, desiccated, protected from light
Tap to enlarge
Identifiers
CC[C@H](C)[C@H](NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](C)NC(=O)C(C)(C)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](C)NC(=O)[C@H](CCCCNC(=O)COCCOCCNC(=O)CC[C@H](NC(=O)CCCCCCCCCCCCCCCCCCC(=O)O)C(=O)O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@](C)(CC(C)C)NC(=O)[C@@H](NC(=O)[C@H](CO)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@@H](NC(=O)CNC(=O)[C@H](CCC(N)=O)NC(=O)C(C)(C)NC(=O)[C@@H](N)Cc1ccc(O)cc1)[C@@H](C)O)[C@@H](C)O)[C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(=O)O)C(=O)NCC(=O)NCC(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(=O)NCC(=O)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)N1CCC[C@H]1C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(N)=OInChI=1S/C221H342N46O68/c1-23-124(11)179(208(322)241-144(83-88-176(291)292)192(306)245-150(105-134-69-75-137(276)76-70-134)196(310)244-148(100-121(5)6)194(308)243-147(99-120(3)4)193(307)240-142(82-87-175(289)290)187(301)230-110-169(282)229-113-173(286)264-92-51-61-161(264)206(320)253-158(116-270)203(317)251-157(115-269)189(303)232-111-170(283)233-128(15)212(326)266-94-53-63-163(266)214(328)267-95-54-64-164(267)213(327)265-93-52-62-162(265)207(321)250-156(114-268)183(226)297)258-200(314)152(103-131-55-41-39-42-56-131)242-185(299)127(14)235-216(331)219(18,19)262-205(319)145(80-85-166(225)279)237-184(298)126(13)234-190(304)140(60-48-50-90-227-172(285)119-335-98-97-334-96-91-228-167(280)86-81-146(215(329)330)236-168(281)65-45-37-35-33-31-29-27-25-26-28-30-32-34-36-38-46-66-174(287)288)238-191(305)141(59-47-49-89-222)239-198(312)154(107-177(293)294)247-195(309)149(101-122(7)8)256-218(333)221(22,109-123(9)10)263-211(325)180(125(12)24-2)259-204(318)160(118-272)252-197(311)151(106-135-71-77-138(277)78-72-135)246-199(313)155(108-178(295)296)248-202(316)159(117-271)254-210(324)182(130(17)274)260-201(315)153(104-132-57-43-40-44-58-132)249-209(323)181(129(16)273)257-171(284)112-231-188(302)143(79-84-165(224)278)255-217(332)220(20,21)261-186(300)139(223)102-133-67-73-136(275)74-68-133/h39-44,55-58,67-78,120-130,139-164,179-182,268-277H,23-38,45-54,59-66,79-119,222-223H2,1-22H3,(H2,224,278)(H2,225,279)(H2,226,297)(H,227,285)(H,228,280)(H,229,282)(H,230,301)(H,231,302)(H,232,303)(H,233,283)(H,234,304)(H,235,331)(H,236,281)(H,237,298)(H,238,305)(H,239,312)(H,240,307)(H,241,322)(H,242,299)(H,243,308)(H,244,310)(H,245,306)(H,246,313)(H,247,309)(H,248,316)(H,249,323)(H,250,321)(H,251,317)(H,252,311)(H,253,320)(H,254,324)(H,255,332)(H,256,333)(H,257,284)(H,258,314)(H,259,318)(H,260,315)(H,261,300)(H,262,319)(H,263,325)(H,287,288)(H,289,290)(H,291,292)(H,293,294)(H,295,296)(H,329,330)/t124-,125-,126-,127-,128-,129+,130+,139-,140-,141-,142-,143-,144-,145-,146-,147-,148-,149-,150-,151-,152-,153-,154-,155-,156-,157-,158-,159-,160-,161-,162-,163-,164-,179-,180-,181-,182-,221-/m0/s1MLOLQJNKXBNWFW-JMUPIODPSA-N
Over 99% pure peptides
Every peptide is analysed by an independent laboratory and documented on a certificate of analysis for that batch.
Shipped from the USA
Stocked, handled and fulfilled domestically. Orders placed before 2 PM ET go out the same day.
You can buy retatrutide from HEEZ Research, which stocks it in 10 mg and 20 mg lyophilized vials and ships from the USA. Everything HEEZ supplies is for in vitro laboratory research — not for human or veterinary use.
Retatrutide is a synthetic 39-amino-acid peptide, CAS 2381089-83-2, molecular formula C221H342N46O68. HEEZ Research supplies it as a lyophilized powder with a per-batch COA published online.
HEEZ Research sells retatrutide in 10 mg and 20 mg lyophilized vials. Both are sealed glass vials of lyophilized powder.
Yes — retatrutide peptide is for sale online at HEEZ Research. It is independently tested by an accredited third-party laboratory using HPLC for purity and identity. Every peptide we sell is over 99% pure. Certificates of Analysis are published on the product page as testing is completed — review the report before you order. A certificate records the identity, purity and quantity measured for the material supplied, so you can confirm what you received matches what was ordered.
Please refer to your facility's standard operating procedures.
Retatrutide is available to buy for research from HEEZ Research as a research-use-only compound supplied to qualified laboratories and independent researchers. Checkout requires an institutional email matching your stated organization, and everything we sell is for in vitro laboratory research — not for human or veterinary use.
Common
questions
Purity verification, documentation, and how orders reach your laboratory.
About Retatrutide
What is retatrutide peptide?
Retatrutide peptide is a synthetic 39-amino-acid research peptide supplied as a lyophilized powder for in vitro laboratory use. The sequence carries non-natural residues — Aib substitutions and an α-methyl-leucine — and a C20 diacid side chain conjugated to a lysine through an AEEA–γ-glutamate linker, ending in a C-terminal serinamide.
How is retatrutide supplied?
Retatrutide is a 39-residue synthetic peptide supplied as a lyophilized powder for in vitro research.
How HEEZ tests retatrutide
Retatrutide is produced by solid-phase peptide synthesis, purified by multi-stage reversed-phase chromatography and lyophilized. Every lot is sent to an independent third-party laboratory and analysed by HPLC for purity and identity (retention time against a reference standard), plus net content, heavy metals, sterility and endotoxin. The result is published on a lot-specific certificate of analysis — the current lot's certificate is here: /coa/retatrutide-10mg-hz-1008-rt10-01-coa.webp. Purity is reported as measured rather than as a marketing floor.
Retatrutide for sale: sizes and format
Retatrutide is for sale from HEEZ Research in 10mg and 20mg sealed glass vials of lyophilized powder. Larger sizes carry a lower cost per milligram; the price per size is in the selector above.
Research use only
Retatrutide from HEEZ Research is supplied strictly for in vitro laboratory research by qualified researchers and organizations. It is not for human or veterinary use and is not a drug, food, supplement or cosmetic. Checkout requires an institutional email matching the stated organization, and purchasers must be 21 or older. All sales are final.
Retatrutide specifications
- Purity
- >99% by HPLC; identity by HPLC retention time against a reference standard
- CAS number
- 2381089-83-2
- Molecular formula
- C221H342N46O68
- Molecular mass
- 4731.33 Da
- Amino acid count
- 39
- Structure
- C-terminal serinamide
- Synonyms
- Reta
- Physical form
- White lyophilized powder
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Terms of sale
Note: our products are not intended to treat, prevent, mitigate or cure any disease or medical condition, and are supplied for laboratory research purposes only. Purchasers must be at least 21 years of age and qualified to handle research materials.