ABT-639
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MedKoo CAT#: 522460

CAS#: 1235560-28-7

Description: ABT-639 is a potent and selective T-type calcium channel blocker. ABT-639 effectively reduces nociceptive and neuropathic pain in rats. ABT-639 produces robust antinociceptive activity in experimental pain models at doses that do not significantly alter psychomotor or hemodynamic function in the rat. ABT-639 was significantly less active at other Ca²⁺ channels (e.g. Ca(v)1.2 and Ca(v)2.2) (IC₅₀ > 30 μM). ABT-639 has high oral bioavailability (%F = 73), low protein binding (88.9%) and a low brain:plasma ratio (0.05:1) in rodents.


Chemical Structure

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ABT-639
CAS# 1235560-28-7

Theoretical Analysis

MedKoo Cat#: 522460
Name: ABT-639
CAS#: 1235560-28-7
Chemical Formula: C20H20ClF2N3O3S
Exact Mass: 455.0882
Molecular Weight: 455.9
Elemental Analysis: C, 52.69; H, 4.42; Cl, 7.78; F, 8.33; N, 9.22; O, 10.53; S, 7.03

Price and Availability

Size Price Availability Quantity
100.0mg USD 850.0 2 Weeks
200.0mg USD 1250.0 2 Weeks
500.0mg USD 2450.0 2 Weeks
1.0g USD 3450.0 2 Weeks
2.0g USD 5150.0 2 Weeks
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Synonym: ABT-639; ABT 639; ABT639.

IUPAC/Chemical Name: (R)-4-chloro-2-fluoro-N-(2-fluorophenyl)-5-(octahydropyrrolo[1,2-a]pyrazine-2-carbonyl)benzenesulfonamide

InChi Key: AGPIHNZOZNKRGT-CYBMUJFWSA-N

InChi Code: InChI=1S/C20H20ClF2N3O3S/c21-15-11-17(23)19(30(28,29)24-18-6-2-1-5-16(18)22)10-14(15)20(27)26-9-8-25-7-3-4-13(25)12-26/h1-2,5-6,10-11,13,24H,3-4,7-9,12H2/t13-/m1/s1

SMILES Code: O=S(C1=CC(C(N2C[C@](CCC3)([H])N3CC2)=O)=C(Cl)C=C1F)(NC4=CC=CC=C4F)=O

Appearance: Solid powder

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, not in water

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

Preparing Stock Solutions

The following data is based on the product molecular weight 455.9 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.

Recalculate based on batch purity %
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

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1: Zhang Q, Xia Z, Joshi S, Scott VE, Jarvis MF. Optimization of ADME Properties for Sulfonamides Leading to the Discovery of a T-Type Calcium Channel Blocker, ABT-639. ACS Med Chem Lett. 2015 Apr 28;6(6):641-4. doi: 10.1021/acsmedchemlett.5b00023. eCollection 2015 Jun 11. PubMed PMID: 26101566; PubMed Central PMCID: PMC4468402.

2: Ziegler D, Duan WR, An G, Thomas JW, Nothaft W. A randomized double-blind, placebo-, and active-controlled study of T-type calcium channel blocker ABT-639 in patients with diabetic peripheral neuropathic pain. Pain. 2015 Oct;156(10):2013-20. doi: 10.1097/j.pain.0000000000000263. PubMed PMID: 26067585.

3: Serra J, Duan WR, Locke C, Solà R, Liu W, Nothaft W. Effects of a T-type calcium channel blocker, ABT-639, on spontaneous activity in C-nociceptors in patients with painful diabetic neuropathy: a randomized controlled trial. Pain. 2015 Nov;156(11):2175-83. doi: 10.1097/j.pain.0000000000000249. PubMed PMID: 26035253.

4: An G, Liu W, Duan WR, Nothaft W, Awni W, Dutta S. Erratum to: population pharmacokinetics and exposure-uric acid analyses after single and multiple doses of ABT-639, a calcium channel blocker, in healthy volunteers. AAPS J. 2015 Mar;17(2):481-92. doi: 10.1208/s12248-015-9725-9. PubMed PMID: 25676842; PubMed Central PMCID: PMC4365100.

5: An G, Liu W, Duan WR, Nothaft W, Awni W, Dutta S. Population pharmacokinetics and exposure-uric acid analyses after single and multiple doses of ABT-639, a calcium channel blocker, in healthy volunteers. AAPS J. 2015 Mar;17(2):416-26. doi: 10.1208/s12248-014-9709-1. Epub 2015 Jan 8. Erratum in: AAPS J. 2015 Mar;17(2):481-92. PubMed PMID: 25567367; PubMed Central PMCID: PMC4365099.

6: Jarvis MF, Scott VE, McGaraughty S, Chu KL, Xu J, Niforatos W, Milicic I, Joshi S, Zhang Q, Xia Z. A peripherally acting, selective T-type calcium channel blocker, ABT-639, effectively reduces nociceptive and neuropathic pain in rats. Biochem Pharmacol. 2014 Jun 15;89(4):536-44. doi: 10.1016/j.bcp.2014.03.015. Epub 2014 Apr 12. PubMed PMID: 24726441.

ABT-639

100.0mg / USD 850.0