Synonym
KM-003; KM 003; KM003; P552-02; P552 02; P55202; P 55202; P-55202; P552-02 mesylate; PS 552-02; 552-02
IUPAC/Chemical Name
3,5-diamino-6-chloro-N-(N-(4-(4-(2,3-dihydroxypropoxy)phenyl)butyl)carbamimidoyl)pyrazine-2-carboxamide
InChi Key
NTRKMGDUWYBLMS-UHFFFAOYSA-N
InChi Code
InChI=1S/C19H26ClN7O4/c20-15-17(22)26-16(21)14(25-15)18(30)27-19(23)24-8-2-1-3-11-4-6-13(7-5-11)31-10-12(29)9-28/h4-7,12,28-29H,1-3,8-10H2,(H4,21,22,26)(H3,23,24,27,30)
SMILES Code
O=C(C1=NC(Cl)=C(N)N=C1N)NC(NCCCCC2=CC=C(OCC(O)CO)C=C2)=N
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info
Related CAS#
587879-32-1(552-02 Free base)
587879-54-7(552-02 Sulfite)
Biological target:
P552-02, also known as KM-003, PS 552-02, or 552-02, is a sodium channel blocker potentially for the treatment of cystic fibrosis.
In vitro activity:
Amiloride and P552-02 likewise attenuated ENaC function across species with potency values, comparable to published data (Coote et al., 2008; Hirsh et al., 2008).
Reference: Br J Pharmacol. 2015 Jun;172(11):2814-26. https://pubmed.ncbi.nlm.nih.gov/25573195/
In vivo activity:
Subsequent dose–response studies using either amiloride (Figure 3A) or 552-02 (Figure 3B), a recently described, potent ENaC blocker (Hirsh et al., 2008), confirmed the initial observations of the enhanced lung fluid volumes. These data suggest that 552-02 is approximately 30-fold more potent than amiloride in vivo, consistent with previous reports in rodent airways (Coote et al., 2008).
Reference: Br J Pharmacol. 2010 Jun;160(4):1008-15. https://pubmed.ncbi.nlm.nih.gov/20590595/
Preparing Stock Solutions
The following data is based on the
product
molecular weight
451.91
Batch specific molecular weights may vary
from batch to batch
due to the degree of hydration, which will
affect the solvent
volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass |
1 mg |
5 mg |
10 mg |
| 1 mM |
1.15 mL |
5.76 mL |
11.51 mL |
| 5 mM |
0.23 mL |
1.15 mL |
2.3 mL |
| 10 mM |
0.12 mL |
0.58 mL |
1.15 mL |
| 50 mM |
0.02 mL |
0.12 mL |
0.23 mL |
Formulation protocol:
1. Coote KJ, Paisley D, Czarnecki S, Tweed M, Watson H, Young A, Sugar R, Vyas M, Smith NJ, Baettig U, Groot-Kormelink PJ, Gosling M, Lock R, Ethell B, Williams G, Schumacher A, Harris J, Abraham WM, Sabater J, Poll CT, Faller T, Collingwood SP, Danahay H. NVP-QBE170: an inhaled blocker of the epithelial sodium channel with a reduced potential to induce hyperkalaemia. Br J Pharmacol. 2015 Jun;172(11):2814-26. doi: 10.1111/bph.13075. Epub 2015 Apr 23. PMID: 25573195; PMCID: PMC4439877.
2. Blé FX, Cannet C, Collingwood S, Danahay H, Beckmann N. ENaC-mediated effects assessed by MRI in a rat model of hypertonic saline-induced lung hydration. Br J Pharmacol. 2010 Jun;160(4):1008-15. doi: 10.1111/j.1476-5381.2010.00747.x. PMID: 20590595; PMCID: PMC2936005.
In vitro protocol:
1. Coote KJ, Paisley D, Czarnecki S, Tweed M, Watson H, Young A, Sugar R, Vyas M, Smith NJ, Baettig U, Groot-Kormelink PJ, Gosling M, Lock R, Ethell B, Williams G, Schumacher A, Harris J, Abraham WM, Sabater J, Poll CT, Faller T, Collingwood SP, Danahay H. NVP-QBE170: an inhaled blocker of the epithelial sodium channel with a reduced potential to induce hyperkalaemia. Br J Pharmacol. 2015 Jun;172(11):2814-26. doi: 10.1111/bph.13075. Epub 2015 Apr 23. PMID: 25573195; PMCID: PMC4439877.
In vivo protocol:
1. Coote KJ, Paisley D, Czarnecki S, Tweed M, Watson H, Young A, Sugar R, Vyas M, Smith NJ, Baettig U, Groot-Kormelink PJ, Gosling M, Lock R, Ethell B, Williams G, Schumacher A, Harris J, Abraham WM, Sabater J, Poll CT, Faller T, Collingwood SP, Danahay H. NVP-QBE170: an inhaled blocker of the epithelial sodium channel with a reduced potential to induce hyperkalaemia. Br J Pharmacol. 2015 Jun;172(11):2814-26. doi: 10.1111/bph.13075. Epub 2015 Apr 23. PMID: 25573195; PMCID: PMC4439877.
2. Blé FX, Cannet C, Collingwood S, Danahay H, Beckmann N. ENaC-mediated effects assessed by MRI in a rat model of hypertonic saline-induced lung hydration. Br J Pharmacol. 2010 Jun;160(4):1008-15. doi: 10.1111/j.1476-5381.2010.00747.x. PMID: 20590595; PMCID: PMC2936005.
1: Coote KJ, Paisley D, Czarnecki S, Tweed M, Watson H, Young A, Sugar R, Vyas M, Smith NJ, Baettig U, Groot-Kormelink PJ, Gosling M, Lock R, Ethell B, Williams G, Schumacher A, Harris J, Abraham WM, Sabater J, Poll CT, Faller T, Collingwood SP, Danahay H. NVP-QBE170: an inhaled blocker of the epithelial sodium channel with a reduced potential to induce hyperkalaemia. Br J Pharmacol. 2015 Jun;172(11):2814-26. doi: 10.1111/bph.13075. Epub 2015 Apr 23. PMID: 25573195; PMCID: PMC4439877.
2: Blé FX, Cannet C, Collingwood S, Danahay H, Beckmann N. ENaC-mediated effects assessed by MRI in a rat model of hypertonic saline-induced lung hydration. Br J Pharmacol. 2010 Jun;160(4):1008-15. doi: 10.1111/j.1476-5381.2010.00747.x. PMID: 20590595; PMCID: PMC2936005.
3: Hirsh AJ, Molino BF, Zhang J, Astakhova N, Geiss WB, Sargent BJ, Swenson BD, Usyatinsky A, Wyle MJ, Boucher RC, Smith RT, Zamurs A, Johnson MR. Design, synthesis, and structure-activity relationships of novel 2-substituted pyrazinoylguanidine epithelial sodium channel blockers: drugs for cystic fibrosis and chronic bronchitis. J Med Chem. 2006 Jul 13;49(14):4098-115. doi: 10.1021/jm051134w. PMID: 16821771.
