Hemokinin 1 (mouse) is a selective neurokinin 1 receptor agonist (activator) with Ki of 0.175 nM and 560 nM for human NK1 receptor and NK2 receptor respectively.

Physicochemical Properties

Molecular Formula	C61H100N22O15S
Molecular Weight	1413.6501
Exact Mass	1412.75
CAS #	208041-90-1
PubChem CID	90479800
Appearance	White to off-white solid powder
Density	1.483 g/cm3
LogP	2.279
Hydrogen Bond Donor Count	22
Hydrogen Bond Acceptor Count	20
Rotatable Bond Count	47
Heavy Atom Count	99
Complexity	2720
Defined Atom Stereocenter Count	11
SMILES	C[C@H]([C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CC2=CC=C(C=C2)O)C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCSC)C(=O)N)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CO)NC(=O)[C@H](CCCN=C(N)N)N)O
InChi Key	ZOLDEMZLDJFVRY-RULPZMNSSA-N
InChi Code	InChI=1S/C61H100N22O15S/c1-32(2)27-42(55(95)76-38(49(64)89)22-26-99-4)75-47(88)30-74-51(91)43(29-35-16-18-36(86)19-17-35)80-56(96)44(28-34-11-6-5-7-12-34)81-53(93)41(20-21-46(63)87)78-52(92)39(14-9-24-72-60(67)68)79-58(98)48(33(3)85)83-54(94)40(15-10-25-73-61(69)70)77-57(97)45(31-84)82-50(90)37(62)13-8-23-71-59(65)66/h5-7,11-12,16-19,32-33,37-45,48,84-86H,8-10,13-15,20-31,62H2,1-4H3,(H2,63,87)(H2,64,89)(H,74,91)(H,75,88)(H,76,95)(H,77,97)(H,78,92)(H,79,98)(H,80,96)(H,81,93)(H,82,90)(H,83,94)(H4,65,66,71)(H4,67,68,72)(H4,69,70,73)/t33-,37+,38+,39+,40+,41+,42+,43+,44+,45+,48+/m1/s1
Chemical Name	(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]-3-hydroxypropanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-hydroxybutanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-N-[(2S)-1-[[(2S)-1-[[2-[[(2S)-1-[[(2S)-1-amino-4-methylsulfanyl-1-oxobutan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]amino]-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]pentanediamide
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

ln Vitro	Concentration-dependent RUB contractions averaging 66±3% (n=6) of the maximal contraction induced by KCl (80 mM) were produced by hemokinin 1 (mouse) (1 nM-3 μM). Both neurokinin B (NKB) and the tachykinin NK3 receptor selective agonist Senktide cause a rapidly developing contractile response to GPI, as does hemokinin 1 (mouse) (10 nM–10 μM). Although it is 500 times less potent than NKB, mouse hemokinin 1 (H1) still causes a complete agonist response [1].
ln Vivo	Dose-related hypotension is induced by mouse hemokinin 1 (0.01-100 nmol/kg iv, n = 10), with a maximal dose of 10 nmol/kg. The ED50 value of kinin 1 (mouse) for systolic blood pressure (SBP) is 0.2 nmol/kg (0.1-0.4 nmol/kg). The ED50 of mouse kinin 1 for diastolic blood pressure (DBP) is 0.1 nmol/kg (0.07-0.2 nmol/kg). In rats given atropine beforehand, hemokinin 1 (mouse) (0.1-100 nmol/kg) promotes dose-related salivation [1].
References	[1]. Pharmacological profile of the novel mammalian tachykinin, hemokinin 1. Br J Pharmacol. 2002 Jan; 135(1): 266-274.

Solubility Data

Solubility (In Vitro)

DMSO : ~100 mg/mL (~70.74 mM)

Solubility (In Vivo)

Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	0.7074 mL	3.5369 mL	7.0739 mL
	5 mM	0.1415 mL	0.7074 mL	1.4148 mL
	10 mM	0.0707 mL	0.3537 mL	0.7074 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.