1. Home
  2. Products
  3. Therapeutic Peptides
  4. Peptide Inhibitors
  5. Astressin

Astressin

Astressin is a potent corticotropin releasing factor (CRF) antagonist.

Designed for biological research and industrial applications, not intended for individual clinical or medical purposes.
Astressin(CAS 170809-51-5)

CAT No: R1219

CAS No:170809-51-5

Synonyms/Alias:Astressin;170809-51-5;CHEBI:76649;MFCD00798715;fHLLREVLE-Nle-ARAEQLAQ-cyclo-(EAHK)NRKL-Nle-EII-NH2;[D-Phe(12), Nle(21,38), Glu(30), Lys(33)]-CRF (12-41);D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-cyclo-(Glu-Ala-His-Lys)-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2;Astressin trifluoroacetate salt;(D-Phe(12), Nle(21,38), Glu(30), Lys(33))-CRF (12-41);Cyclo(30-33)(phe(12),nle(21,38),glu(30),lys(33))r-hcrf(12-41);GTPL925;GLXC-27962;AKOS024456701;FA108999;D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-cyclo[Glu-Glu-Ala-His-Lys]-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2;H-D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-cyclo(-Glu-Ala-His-Lys)- Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile -NH2; H-(dF)HLLREVLE(Nle)ARAEQLAQ[Bbc][EAHK]NRKL(Nle)EII-NH2;L-Isoleucinamide, D-phenylalanyl-L-histidyl-L-leucyl-L-leucyl-L-arginyl-L-alpha-glutamyl-L-valyl-L-leucyl-L-alpha-glutamyl-L-norleucyl-L-alanyl-L-arginyl-L-alanyl-L-alpha-glutamyl-L-glutaminyl-L-leucyl-L-alanyl-L-glutaminyl-L-alpha-glutamyl-L-alanyl-L-histidyl-L-lysyl-L-asparaginyl-L-argin;L-Isoleucinamide,d-phenylalanyl-L-histidyl-L-Leucyl-L-Leucyl-L-arginyl-L-a-glutamyl-L-valyl-L-Leucyl-L-a-glutamyl-L-norleucyl-L-alanyl-L-arginyl-L-alanyl-L-a-glutamyl-L-glutaminyl-l-leucyl-l-alanyl-l-;

Custom Peptide Synthesis
cGMP Peptide
  • Registration of APIs
  • CMC information required for an IND
  • IND and NDA support
  • Drug master files (DMF) filing
M.F/Formula
C161H269N49O42
M.W/Mr.
3563.2
Sequence
One Letter Code:FHLLREVLEXARAEQLAQEAHKNRKLXEII
Three Letter Code:H-D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-Glu(1)-Ala-His-Lys(1)-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2
InChI
InChI=1S/C161H269N49O42/c1-23-27-41-96(189-145(239)107(52-59-123(217)218)199-152(246)114(71-84(13)14)207-157(251)126(85(15)16)208-147(241)108(53-60-124(219)220)197-140(234)102(47-38-66-179-161(172)173)193-151(245)112(69-82(9)10)204-153(247)113(70-83(11)12)205-155(249)116(74-94-77-175-79-181-94)201-134(228)95(163)72-92-39-30-29-31-40-92)135(229)182-88(19)130(224)186-100(45-36-64-177-159(168)169)136(230)183-89(20)131(225)188-106(51-58-122(215)216)144(238)195-104(49-56-119(165)212)146(240)202-110(67-80(5)6)149(243)185-90(21)132(226)187-103(48-55-118(164)211)143(237)196-105-50-57-121(214)176-63-35-33-44-99(192-154(248)115(73-93-76-174-78-180-93)200-133(227)91(22)184-137(105)231)142(236)206-117(75-120(166)213)156(250)194-101(46-37-65-178-160(170)171)139(233)190-98(43-32-34-62-162)141(235)203-111(68-81(7)8)150(244)191-97(42-28-24-2)138(232)198-109(54-61-125(221)222)148(242)210-128(87(18)26-4)158(252)209-127(129(167)223)86(17)25-3/h29-31,39-40,76-91,95-117,126-128H,23-28,32-38,41-75,162-163H2,1-22H3,(H2,164,211)(H2,165,212)(H2,166,213)(H2,167,223)(H,174,180)(H,175,181)(H,176,214)(H,182,229)(H,183,230)(H,184,231)(H,185,243)(H,186,224)(H,187,226)(H,188,225)(H,189,239)(H,190,233)(H,191,244)(H,192,248)(H,193,245)(H,194,250)(H,195,238)(H,196,237)(H,197,234)(H,198,232)(H,199,246)(H,200,227)(H,201,228)(H,202,240)(H,203,235)(H,204,247)(H,205,249)(H,206,236)(H,207,251)(H,208,241)(H,209,252)(H,210,242)(H,215,216)(H,217,218)(H,219,220)(H,221,222)(H4,168,169,177)(H4,170,171,178)(H4,172,173,179)/t86-,87-,88-,89-,90-,91-,95+,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,113-,114-,115-,116-,117-,126-,127-,128-/m0/s1
InChI Key
HPYIIXJJVYSMCV-MGDXKYBTSA-N

Useful Tools

Peptide Calculator

Abbreviation List

Peptide Glossary

If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.

Featured Services
Peptide Modification ServicesEpitope Mapping ServicesPeptide CDMOPeptide Synthesis ServicesPeptide Nucleic Acids SynthesisCustom Conjugation ServicePeptide Analysis ServicescGMP Peptide Service
Hot Products
Angiotensin II Acetate

Angiotensin II Acetate is a potent research peptide regulating blood pressure and vascular tone. Purchase this synthetic peptide to support cardiovascular and renal studies.

Read More Read More
Deslorelin

Deslorelin peptide is a potent GnRH agonist used for fertility and hormonal control. Buy Deslorelin peptide powder online for veterinary and endocrine research applications.

Read More Read More
Atosiban

Atosiban is a peptide oxytocin receptor antagonist that helps prevent preterm labor. Buy Atosiban peptide for reproductive and uterine contractility research.

Read More Read More
Elcatonin Acetate

Elcatonin Acetate is a calcitonin analog supporting bone metabolism research. Buy Elcatonin peptide online to study calcium regulation and osteoporosis.

Read More Read More
Angiotensin II

Angiotensin II peptide regulates blood pressure and vascular constriction. Purchase this synthetic research peptide to support cardiovascular and renal function studies.

Read More Read More
Carperitide

Carperitide is a human atrial natriuretic peptide analog for heart and kidney research. Buy Carperitide peptide online to study diuretic and cardiovascular effects.

Read More Read More
Antide

Antide is a GnRH antagonist peptide used in reproductive hormone research. Buy Antide peptide powder from a reliable peptide supplier for endocrine studies.

Read More Read More
Buserelin Acetate

Buserelin Acetate is a GnRH agonist peptide regulating reproductive hormones. Buy Buserelin peptide powder online to explore fertility and hormone-dependent tumor research.

Read More Read More
Gonadorelin Acetate

Gonadorelin Acetate stimulates LH and FSH release in fertility research. Purchase Gonadorelin peptide powder from a verified peptide supplier for reproductive studies.

Read More Read More
DOTA-cyclo(RGDfK) acetate

DOTA-cyclo(RGDfK) acetate is a metal-chelating cyclic RGD peptide used to investigate integrin-binding motifs. Its cyclized structure stabilizes ligand presentation for receptor-targeting studies. Researchers analyze its conformation for high-affinity binding models. The DOTA moiety supports imaging-related biochemical experiments.

Read More Read More
About us

Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.

From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.

Our Customers