Skip to Content
Merck
All Photos(1)

Key Documents

E1142

Sigma-Aldrich

β-Endorphin rat

≥97% (HPLC)

Synonym(s):

β-Lipotropin 61-91

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C157H254N42O44S
CAS Number:
Molecular Weight:
3466.02
MDL number:
UNSPSC Code:
12352202
PubChem Substance ID:
NACRES:
NA.32

Quality Level

Assay

≥97% (HPLC)

UniProt accession no.

storage temp.

−20°C

SMILES string

CC[C@H](C)[C@H](NC(=O)[C@H](C)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@@H]2CCCN2C(=O)[C@@H](NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CO)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](CCSC)NC(=O)[C@H](Cc3ccccc3)NC(=O)CNC(=O)CNC(=O)[C@@H](N)Cc4ccc(O)cc4)[C@@H](C)O)[C@@H](C)O)C(C)C)[C@@H](C)O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](Cc5c[nH]cn5)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)NCC(=O)N[C@@H](CCC(N)=O)C(O)=O

InChI

1S/C157H254N42O44S/c1-18-84(11)125(152(237)183-100(45-30-35-62-162)135(220)186-111(72-118(167)209)146(231)192-123(82(7)8)150(235)189-109(70-93-73-168-79-172-93)144(229)179-97(42-27-32-59-159)133(218)176-96(41-26-31-58-158)132(217)171-76-121(212)174-104(157(242)243)52-55-116(165)207)195-153(238)126(85(12)19-2)194-130(215)86(13)173-140(225)110(71-117(166)208)185-134(219)98(43-28-33-60-160)178-143(228)108(69-91-39-24-21-25-40-91)184-141(226)105(65-80(3)4)188-154(239)128(88(15)203)197-151(236)124(83(9)10)193-145(230)106(66-81(5)6)187-149(234)114-46-36-63-199(114)156(241)129(89(16)204)198-138(223)101(51-54-115(164)206)180-147(232)112(77-200)190-136(221)99(44-29-34-61-161)177-137(222)102(53-56-122(213)214)181-148(233)113(78-201)191-155(240)127(87(14)202)196-139(224)103(57-64-244-17)182-142(227)107(68-90-37-22-20-23-38-90)175-120(211)75-169-119(210)74-170-131(216)95(163)67-92-47-49-94(205)50-48-92/h20-25,37-40,47-50,73,79-89,95-114,123-129,200-205H,18-19,26-36,41-46,51-72,74-78,158-163H2,1-17H3,(H2,164,206)(H2,165,207)(H2,166,208)(H2,167,209)(H,168,172)(H,169,210)(H,170,216)(H,171,217)(H,173,225)(H,174,212)(H,175,211)(H,176,218)(H,177,222)(H,178,228)(H,179,229)(H,180,232)(H,181,233)(H,182,227)(H,183,237)(H,184,226)(H,185,219)(H,186,220)(H,187,234)(H,188,239)(H,189,235)(H,190,221)(H,191,240)(H,192,231)(H,193,230)(H,194,215)(H,195,238)(H,196,224)(H,197,236)(H,198,223)(H,213,214)(H,242,243)/t84-,85-,86-,87+,88+,89+,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,113-,114-,123-,124-,125-,126-,127-,128-,129-/m0/s1

InChI key

KSZMZNRVPCEDEO-KFHPFRHLSA-N

Gene Information

rat ... Pomc(24664)

Looking for similar products? Visit Product Comparison Guide

Amino Acid Sequence

Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Val-His-Lys-Lys-Gly-Gln

Biochem/physiol Actions

Potent endogenous opioid protein that is derived from propiomelanocortin, a protein found in the brain, anterior pituitary, skin, immune system, and other peripheral sites. It is released in response to painful stimuli and has potent antinociceptive activity that is mediated through its action on μ receptors in brain and by μ and κ receptors in the spinal cord.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Lars Hendrik Müschen et al.
Neuropsychobiology, 78(3), 118-127 (2019-05-23)
Alcohol is one of the leading threats to health worldwide. Craving for alcohol makes abstinence a difficult challenge by maintaining alcohol dependence. Many studies suppose the hypothalamic-pituitary-adrenal axis, especially the proopiomelanocortin (POMC)-derived neuropeptides, to mediate craving during withdrawal in alcohol

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service