The Harmaline with the CAS number 304-21-2 is also called 1-Methyl-7-methoxy-3,4-dihydro-b-carboline. The systematic name is 3H-Pyrido(3,4-b)indole, 4,9-dihydro-7-methoxy-1-methyl-. Its EINECS registry number is 206-152-6. The molecular formula is C₁₃H₁₄N₂O. This chemical belongs to the following product categories: (1)Indoles and derivatives; (2)Heterocyclic Compound.

Uses: This chemical can react with acetic acid anhydride to prepare 2-acetyl-7-methoxy-1-methylene-2,3,4,9-tetrahydro-1H-b-carboline. This reaction needs reagent CH₃COONa at temperature of 28 - 30 °C. The reaction time is 45 min. The yield is 80%.

While using this chemical, you should be very cautious. This chemical is toxic if swallowed and harmful by inhalation, in contact with skin and if swallowed. Therefore, you should take the following instructions. Firstly you should not breathe dust. Then you should wear suitable protective clothing. Finally you should avoid this chemical contact with skin and eyes.

You can still convert the following datas into molecular structure:
(1)SMILES: c12c3c([nH]c1C(=NCC2)C)cc(cc3)OC
(2)InChI: InChI=1S/C13H14N2O/c1-8-13-11(5-6-14-8)10-4-3-9(16-2)7-12(10)15-13/h3-4,7,15H,5-6H2,1-2H3

The toxicity data is as follows: