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MedKoo CAT#: 528001

CAS#: 1380341-99-0

Description: GAL-021 is a large conductance calcium-activated potassium channel (BKCa-channel) blocker potentially for the treatment of respiratory depression. GAL-021 inhibited KCa1.1 in GH3 cells, and the evoked ventilatory stimulation was attenuated in Slo1 mice lacking the pore-forming α-subunit of the KCa1.1 channel. At a higher concentration of GAL-160 (100 μM), inhibition of the delayed rectifier K(+) current and leak K(+) current were observed.

Price and Availability

Size Price Shipping out time Quantity
25mg USD 250 2 Weeks
50mg USD 450 2 Weeks
100mg USD 850 2 Weeks
200mg USD 1250 2 Weeks
500mg USD 2150 2 Weeks
1g USD 3250 2 Weeks
2g USD 4350 2 Weeks
5g USD 6450 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2020-05-29. Prices are subject to change without notice.

GAL-021, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 528001
Name: GAL-021
CAS#: 1380341-99-0
Chemical Formula: C11H22N6O
Exact Mass: 254.1855
Molecular Weight: 254.338
Elemental Analysis: C, 51.95; H, 8.72; N, 33.04; O, 6.29

Synonym: GAL-021; GAL 021; GAL021

IUPAC/Chemical Name: 6-(methoxy(methyl)amino)-N2,N4-dipropyl-1,3,5-triazine-2,4-diamine


InChi Code: InChI=1S/C11H22N6O/c1-5-7-12-9-14-10(13-8-6-2)16-11(15-9)17(3)18-4/h5-8H2,1-4H3,(H2,12,13,14,15,16)


Technical Data

Solid powder

>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).

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:


1: Golder FJ, Dax S, Baby SM, Gruber R, Hoshi T, Ideo C, Kennedy A, Peng S, Puskovic V, Ritchie D, Woodward R, Wardle RL, Van Scott MR, Mannion JC, MacIntyre DE. Identification and Characterization of GAL-021 as a Novel Breathing Control Modulator. Anesthesiology. 2015 Nov;123(5):1093-104. doi: 10.1097/ALN.0000000000000844. PubMed PMID: 26352381.

2: Dallas ML, Peers C, Golder FJ, Baby S, Gruber R, MacIntyre DE. GAL-021 and GAL-160 are Efficacious in Rat Models of Obstructive and Central Sleep Apnea and Inhibit BKCa in Isolated Rat Carotid Body Glomus Cells. Adv Exp Med Biol. 2015;860:361-70. doi: 10.1007/978-3-319-18440-1_41. PubMed PMID: 26303501.

3: McLeod JF, Leempoels JM, Peng SX, Dax SL, Myers LJ, Golder FJ. GAL-021, a new intravenous BKCa-channel blocker, is well tolerated and stimulates ventilation in healthy volunteers. Br J Anaesth. 2014 Nov;113(5):875-83. doi: 10.1093/bja/aeu182. PubMed PMID: 24989775.

4: Roozekrans M, Olofsen E, van der Schrier R, van Gerven J, Peng S, McLeod J, Dahan A. Reversal of opioid-induced respiratory depression by BK-channel blocker GAL021: A pharmacokinetic-pharmacodynamic modeling study in healthy volunteers. Clin Pharmacol Ther. 2015 Jun;97(6):641-9. doi: 10.1002/cpt.99. PubMed PMID: 25704491.

5: Roozekrans M, van der Schrier R, Okkerse P, Hay J, McLeod JF, Dahan A. Two studies on reversal of opioid-induced respiratory depression by BK-channel blocker GAL021 in human volunteers. Anesthesiology. 2014 Sep;121(3):459-68. doi: 10.1097/ALN.0000000000000367. PubMed PMID: 25222672.

6: van der Schier R, Roozekrans M, van Velzen M, Dahan A, Niesters M. Opioid-induced respiratory depression: reversal by non-opioid drugs. F1000Prime Rep. 2014 Sep 4;6:79. doi: 10.12703/P6-79. Review. PubMed PMID: 25343036; PubMed Central PMCID: PMC4173639.

7: Golder FJ, Hewitt MM, McLeod JF. Respiratory stimulant drugs in the post-operative setting. Respir Physiol Neurobiol. 2013 Nov 1;189(2):395-402. doi: 10.1016/j.resp.2013.06.010. Review. PubMed PMID: 23791825.

8: Cotten JF. The latest pharmacologic ventilator. Anesthesiology. 2014 Sep;121(3):442-4. doi: 10.1097/ALN.0000000000000368. PubMed PMID: 25222671; PubMed Central PMCID: PMC4166568.

9: Xie Y, Puscheck EE, Rappolee DA. Effects of SAPK/JNK inhibitors on preimplantation mouse embryo development are influenced greatly by the amount of stress induced by the media. Mol Hum Reprod. 2006 Apr;12(4):217-24. PubMed PMID: 16574700.