1. Atenolol (free base) has a molecular weight of 266

2. Pharmaceutical dosage forms comprising ecopipam free base or pharmaceutically acceptable salts thereof

3. N 8 atom could form H - bond to the acceptor as a free base.

4. 1¿ are as defined herein, and may be in free base or acid addition salt form.

5. The present invention provides solid crystalline forms of Apomorphine free base or a hydrate, solvate, or co-crystals thereof

6. Crack cocaine, also known simply as Crack or rock, is a free base form of cocaine that can be smoked

7. Synonym: Chlorpromazine, Hydrochloride - CAS 69-09-0 - Calbiochem Empirical Formula (Hill Notation): C 17 H 19 ClN 2 S · xHCl Molecular Weight: 318.86 (free base basis)

8. The mutual interactions of Gd(III)tetraphenylporphyrin (GdTPP), Gd(III)tetramethylpyridylporphyrin (GdTMePyP), and the free base tetramethylpyridylporphyrin (H2TMePyP) with some nucleic bases (adenine, thymine, uracil, and cytosine) and their N-glycoside derivatives (adenosine, thymidine, uridine, and cytidine) have been studied by spectrophotometric titration in mixed methanol-ammonia-water solutions.