The 1H-Indol-5-ol,3-[2-(methylamino)ethyl]-, ethanedioate (1:1), with the CAS registry number 1975-81-1, is also known as 5-Hydroxy-Nw-methyltryptamine oxalate. This chemical's molecular formula is C₁₃H₁₆N₂O₅ and molecular weight is 280.2765. What's more, its systematic name is called 3-[2-(Methylamino)ethyl]-1H-indol-5-ol ethanedioate (1:1).

Physical properties about 1H-Indol-5-ol,3-[2-(methylamino)ethyl]-, ethanedioate (1:1) are: (1)ACD/LogP: 0.35; (2)#of Rule of 5 Violations: 0; (3)#H bond acceptors: 3; (4)#H bond donors: 3; (5)#Freely Rotating Bonds: 4; (6)Polar Surface Area: 17.4 Å²; (7)Flash Point: 197.3 °C; (8)Enthalpy of Vaporization: 67.92 kJ/mol; (9)Boiling Point: 402.6 °C at 760 mmHg; (10)Vapour Pressure: 4.66E-07 mmHg at 25 °C; (11)Melting Point: 161-162 °C.

When you are dealing with this chemical, you should be very careful. This chemical is irritating to eyes, respiratory system and skin. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C(O)C(=O)O.Oc1cc2c(cc1)ncc2CCNC
(2) InChI: InChI=1/C11H14N2O.C2H2O4/c1-12-5-4-8-7-13-11-3-2-9(14)6-10(8)11;3-1(4)2(5)6/h2-3,6-7,12-14H,4-5H2,1H3;(H,3,4)(H,5,6)
(3) InChIKey: DYOZWAJOUTVNAF-UHFFFAOYAM