Y-27632 dihydrochloride CAS: 129830-38-2
MF: C14H21N3O•2HCl
MW: 320.26

Y-27632 dihydrochloride (CAS 129830-38-2)

Y-27632 dihydrochloride | CAS 129830-38-2 is rated 5.0 out of 5 by 1.
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Alternate Names: Y-27632 dihydrochloride is also known as ROCK Inhibitor
Application: Y-27632 dihydrochloride is a cell permeable inhibitor of ROCK-1 and ROCK-2 which plays an important role in Rho-mediated cell adhesion and smooth muscle contraction.
CAS Number: 129830-38-2
Purity: ≥98%
Molecular Weight: 320.26
Molecular Formula: C14H21N3O•2HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).
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Y-27632 dihydrochloride is a selective Rho-kinase inhibitor. Y-27632 dihydrochloride suppresses cholinergic nerve-mediated contractions. In addition, studies show that Y-27632 dihydrochloride increases the release of neurotransmitters from cholinergic nerves. Studies conducted on smooth muscle preparations suggest that Y-27632 dihydrochloride suppresses nerve-mediated contractile responses stimulated by acetylcholine and noradrenaline. Furthermore, studies on lung tissue damage in rats suggest that Y-27632 dihydrochloride can restore the damage caused by oleic acid by inhibition of ROCK-1 and ROCK-2. Y-27632 dihydrochloride also inhibits protein kinase C related kinase, PRK2.


1. Uehata, M., et al., 1997. Calcium sensitization of smooth muscle mediated by a Rho-associated protein kinase in hypertension. Nature. 389(6654): 990-4. PMID: 9353125

2. Itoh, K., et al., 1999. An essential part for Rho-associated kinase in the transcellular invasion of tumor cells. Nature medicine. 5(2): 221-5. PMID: 9930872

3. Davies, S P., et al., 2000. Specificity and mechanism of action of some commonly used protein kinase inhibitors. The Biochemical journal. 351(Pt 1): 95-105. PMID: 10998351

4. Narumiya, S., et al., 2000. Use and properties of ROCK-specific inhibitor Y-27632. Methods in enzymology. 325(): 273-84. PMID: 11036610

5. Köksel, Oğuz., et al., 2005. Rho-kinase (ROCK-1 and ROCK-2) upregulation in oleic acid-induced lung injury and its restoration by Y-27632. European journal of pharmacology. 510(1-2): 135-42. PMID: 15740734

6. Fernandes, Lynette., et al., 2006. A Rho-kinase inhibitor, Y-27632, reduces cholinergic contraction but not neurotransmitter release. European journal of pharmacology. 550(1-3): 155-61. PMID: 17010334

Physical State :
Solubility :
Soluble in water (14 mg/mL), ethanol (~5 mg/mL), DMSO (~20 mg/mL), DMF (~30 mg/mL), PBS, pH 7.2 (~10 mg/mL), and methanol (25 mg/mL).
Storage :
Store at -20° C
Refractive Index :
n20D 1.58
Optical Activity :
α20D +7, c = 0.4 in methanol
IC50 :
ROCK-II: IC50 = 800 nM; PRK2: IC50 = 600 nM; Smooth-muscle contraction induces by various agonists including phenylephrine, histamine, acetylcholine, serotonin, endothelin, and thromboxane : IC50 = 0.3-1 µM
Ki Data :
p160ROCK: Ki= 140 nM; cAMP-dependent protein kinase: Ki= 25 µM; PKC: Ki= 26 µM; Myosin light-chain kinase: Ki= >250 µM; ROCKI: Ki= 0.22 µM; ROCKII: Ki= 0.3 µM; PKCα: Ki= 73 µM
pK Values :
pKa: 13.53 (Predicted), pKb: 10.74 (Predicted)
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
PubChem CID :
MDL Number :
C[[email protected]](C1CCC(CC1)C(=O)NC2=CC=NC=C2)N.Cl.Cl

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Y-27632 dihydrochloride (CAS 129830-38-2)  Product Citations

See how others have used Y-27632 dihydrochloride (CAS 129830-38-2). Click on the entry to view the PubMed entry .

Citations 1 to 10 of 35 total

PMID: # 33529599  Shah, PP.|Lv, W.|Rhoades, JH.|Poleshko, A.|Abbey, D.|Caporizzo, MA.|Linares-Saldana, R.|Heffler, JG.|Sayed, N.|Thomas, D.|Wang, Q.|Stanton, LJ.|Bedi, K.|Morley, MP.|Cappola, TP.|Owens, AT.|Margulies, KB.|Frank, DB.|Wu, JC.|Rader, DJ.|Yang, W.|Prosser, BL.|Musunuru, K.|Jain, R.| et al. 2021. Cell Stem Cell. 28: 938-954.e9.

PMID: # 33898197  Wang, H.|Gong, P.|Chen, T.|Gao, S.|Wu, Z.|Wang, X.|Li, J.|Marjani, SL.|Costa, J.|Weissman, SM.|Qi, F.|Pan, X.|Liu, L.| et al. 2021. Adv Sci (Weinh). 8: 2004320.

PMID: # 33794364  Vaidyanathan, S.|Baik, R.|Chen, L.|Bravo, DT.|Suarez, CJ.|Abazari, SM.|Salahudeen, AA.|Dudek, AM.|Teran, CA.|Davis, TH.|Lee, CM.|Bao, G.|Randell, SH.|Artandi, SE.|Wine, JJ.|Kuo, CJ.|Desai, TJ.|Nayak, JV.|Sellers, ZM.|Porteus, MH.| et al. 2021. Mol Ther.

PMID: # 32845994  Das, D.|Li, J.|Cheng, L.|Franco, S.|Mahairaki, V.| et al. 2020. Radiat Res. 194: 191-198.

PMID: # 31978363  Kathiriya, JJ.|Brumwell, AN.|Jackson, JR.|Tang, X.|Chapman, HA.| et al. 2020. Cell Stem Cell. 26: 346-358.e4.

PMID: # 32619513  Toyohara, T.|Roudnicky, F.|Florido, MHC.|Nakano, T.|Yu, H.|Katsuki, S.|Lee, M.|Meissner, T.|Friesen, M.|Davidow, LS.|Ptaszek, L.|Abe, T.|Rubin, LL.|Pereira, AC.|Aikawa, M.|Cowan, CA.| et al. 2020. Cell Stem Cell. 27: 178-180.

PMID: # 33373890  Siehler, J.|Blöchinger, AK.|Akgün, M.|Wang, X.|Shahryari, A.|Geerlof, A.|Lickert, H.|Burtscher, I.| et al. 2020. Stem Cell Res. 50: 102126.

PMID: # 30776675  Kahounová, Z.|Slabáková, E.|Binó, L.|Remšík, J.|Fedr, R.|Bouchal, J.|Vrtěl, R.|Jurečková, L.|Porokh, V.|Páralová, D.|Hampl, A.|Souček, K.| et al. 2019. Stem Cell Res. 35: 101405.

PMID: # 30481741  Kahounová, Z.|Slabáková, E.|Binó, L.|Remšík, J.|Fedr, R.|Bouchal, J.|Kurfűrstová, D.|Vrtěl, R.|Študent, V.|Jurečková, L.|Porokh, V.|Hampl, A.|Souček, K.| et al. 2018. Stem Cell Res. 33: 255-259.

PMID: # 29462126  Remšík, J.|Fedr, R.|Navrátil, J.|Binó, L.|Slabáková, E.|Fabian, P.|Svoboda, M.|Souček, K.| et al. 2018. Br J Cancer. 118: 813-819.

Citations 1 to 10 of 35 total

What is the storage temperature for solution of Y-27632 dihydrochloride?

Asked by: two2igm05
It is recommended to store aliquots of sc-281642 in solution for up to 6 months at -20º C. Before usage, the aliquots should be thawed at room temperature for an hour.
Answered by: Chemical Support 4
Date published: 2017-02-25
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Rated 5 out of 5 by from Pigati Pigati, PA. et al. (PubMed 26264367) evaluated the effects of Y-27632 dihydrochloride, a selective Rho-kinase inhibitor, with or without concurrent dexamethasone treatment, on airway and lung tissue mechanical responses, inflammation, extracellular matrix remodeling, and oxidative stress in guinea pigs with chronic allergic inflammation. This therapeutic strategy reduced the levels of collagen and IFN- in the airway walls, as well as IL-2, IFN- , 8-iso-PGF2 and NF- B in the distal parenchyma, when compared to isolated treatment with corticosteroid or Rho-kinase inhibitor (P < 0.05) and reduced the number of TIMP-1-positive cells and eosinophils in the alveolar septa compared to corticosteroid-treated animals (P < 0.05). -SCBT Publication Review
Date published: 2015-06-10
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