R 121919 hydrochloride

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 584725

CAS#: 195055-66-4

Description: R 121919 hydrochloride is a high affinity CRF1 antagonist and is orally bioavailable.

Chemical Structure

R 121919 hydrochloride
CAS# 195055-66-4

Theoretical Analysis

MedKoo Cat#: 584725
Name: R 121919 hydrochloride
CAS#: 195055-66-4
Chemical Formula: C22H33ClN6
Exact Mass: 416.2455
Molecular Weight: 416.998
Elemental Analysis: C, 63.37; H, 7.98; Cl, 8.50; N, 20.15

Price and Availability

Size Price Availability Quantity
10.0mg USD 320.0 2 weeks
50.0mg USD 880.0 2 weeks
Bulk inquiry

Synonym: R 121919 hydrochloride; R121919 hydrochloride; R-121919 hydrochloride; R-121919; R 121919; R121919

IUPAC/Chemical Name: 3-[6-(Dimethylamino)-4-methyl-3-pyridinyl]-2,5-dimethyl-N,N-dipropylpyrazolo[1,5-a]pyrimidin-7-amine hydrochloride


InChi Code: InChI=1S/C22H32N6.ClH/c1-8-10-27(11-9-2)20-13-16(4)24-22-21(17(5)25-28(20)22)18-14-23-19(26(6)7)12-15(18)3;/h12-14H,8-11H2,1-7H3;1H

SMILES Code: CCCN(CCC)C1=CC(C)=NC2=C(C3=C(C)C=C(N(C)C)N=C3)C(C)=NN12.[H]Cl

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

Shelf Life: >3 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: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 416.998 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

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

Chen and Grigoriadis (2005) NBI 30775 (R121919), an orally active antagonist of the corticotropin-releasing factor (CRF) type-1 receptor for the treatment of anxiety and depression. Drug Dev.Res. 65 216

Jutkiewicz et al (2005) The effects of CRF antagonists, antalarmin, CP154,526, LWH234, and R121919, in the forced swim test and on swim-induced increases in adrenocorticotropin in rats. Psychopharmacology (Berl). 180 215 PMID: 15696320

Gutman et al (2003) The corticotropin-releasing factor1 receptor antagonist R121919 attenuates the behavioral and endocrine responses to stress. J.Pharmacol.Exp.Ther. 304 874 PMID: 12538845

Heinrichs et al (2002) Brain penetrance, receptor occupancy and antistress in vivo efficacy of a small molecule corticotropin releasing factor type I receptor selective antagonist. Neuropsychopharmacology 27 194 PMID: 12093593