Research use only
Retatrutide Peptide (Reta)
Retatrutide (RETA) Peptide cost and available sizes below.
Secure Checkout With
Orders ship via FedEx 2Day or FedEx Overnight. Orders placed before 12 PM (noon) ET, Monday–Friday, go out the same day; nothing ships on weekends.
- Preparation form
- Lyophilized powder
- Storage
- Sealed vial, protected from light
- Analytical purity
- >99%
- Intended use
- In vitro research only
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 12 PM (noon) ET, Monday–Friday, go out the same day.
Qualified buyers can buy retatrutide online from LOOM Peptides, which stocks it in 10 mg and 20 mg lyophilized vials and ships from the USA. Everything LOOM 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. LOOM Peptides supplies it as a lyophilized powder with a per-batch COA published online.
LOOM Peptides 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 LOOM Peptides. 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 LOOM Peptides as a research-use-only compound supplied to qualified laboratories. 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.
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-NAbout 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 LOOM 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).
Retatrutide for sale: sizes and format
Retatrutide is for sale from LOOM Peptides in 10mg and 20mg sealed glass vials of lyophilized powder. Larger sizes carry a lower cost per milligram, allowing your institution to run additional studies on the same budget. The price for each size is shown in the selector above.
Research use only
Retatrutide from LOOM Peptides 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.