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Merck
CN

A4933

Astressin

≥90% (HPLC)

Synonym(s):

[D-Phe12, Nle21,38, Glu30, Lys33]-Corticotropin Releasing Factor fragment 12-41

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About This Item

Empirical Formula (Hill Notation):
C161H269N49O42
CAS Number:
170809-51-5
Molecular Weight:
3563.16
UNSPSC Code:
12352200
NACRES:
NA.32
MDL number:
MFCD00798715
Form:
powder
Assay:
≥90% (HPLC)

Key Documents

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SMILES string

[nH]1cncc1C[C@@H]2NC(=O)[C@@H](NC(=O)[C@H](CCC(=O)NCCCC[C@H](NC2=O)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](CCCN\C(=N\[H])\N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H]([C@H](CC)C)C(=O)N[C@@H]([C@H](CC)C)C(=O)N)NC(

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

assay

≥90% (HPLC)

form

powder

storage temp.

−20°C

Quality Level

200

Gene Information

human ... CRH(1392)
mouse ... CRH(12918)
rat ... CRH(81648)

Application

Astressin has been used as a CRF-receptor antagonist to study its effects on the decrease in the Schaffer collateral-CA1 field potential induced by hypoxia/hypoglycemia (ischemia) in rat hippocampal slices.

Biochem/physiol Actions

Astressin is a non-selective corticotropin releasing factor (CRF)-receptor antagonist. It potentially blocks CRF-induced adrenocorticotropic hormone (ACTH) release. Astressin effectively deceases delayed effects of chronic social isolation such as anxiety and fobial states in rats.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

涉药品监管产品
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Certificates of Analysis (COA)

Lot/Batch Number
0000385191
0000385191
0000274760
0000268336
0000274760

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Pu-Qing Yuan et al.
American journal of physiology. Gastrointestinal and liver physiology, 303(1), G20-G31 (2012-04-21)
Peripheral activation of corticotropin-releasing factor receptor type 2 (CRF(2)) by urocortin 1, 2, or 3 (Ucns) exerts powerful effects on gastric function; however, little is known about their expression and regulation in the stomach. We investigated the expression of Ucns
T J Sajdyk et al.
Brain research, 877(2), 226-234 (2000-09-15)
Previous work in our laboratory has shown that Urocortin (Ucn), a peptide related to corticotropin releasing factor (CRF), injected into the basolateral nucleus of the amygdala (BLA) in male Wistar rats would result in an anxiogenic response as measured in
Kabirullah Lutfy et al.
Journal of neurochemistry, 120(6), 1108-1116 (2011-12-24)
Corticosterone-releasing hormone (CRH) and arginine vasopressin (AVP) are crucial components of the hypothalamic-pituitary-adrenal axis that stimulates the release of adrenocorticotropic hormone from the pituitary and mediate the stress response. CRH binds to two subtypes of CRH receptors (CRH-R1 and CRH-R2)
L Yang et al.
Physiology & behavior, 104(5), 886-892 (2011-06-10)
Rapid eye movement sleep (REM) is increased after controllable stress (modeled by escapable footshock, ES) and decreased after uncontrollable stress (modeled by inescapable footshock, IS). Decreases in REM after IS are exacerbated by corticotropin releasing factor (CRF) and attenuated by
Young Ju Cho et al.
Journal of Korean medical science, 26(2), 279-283 (2011-02-03)
Corticotrophin-releasing factor (CRF) plays a major role in coordinating stress responses. We aimed to test whether blocking endogenous CRF activity can prevent the stress-induced dilation of intercellular spaces in esophageal mucosa. Eighteen adult male rats were divided into 3 groups:
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