Molecule structure of d-1-Acetyl lysergic acid monoethylamide  (CAS NO.50485-03-5):

Molecular Weight: 337.41552 g/mol
Molecular Formula: C₂₀H₂₃N₃O₂ 
Density: 1.3 g/cm³ 
Boiling Point: 583.7 °C at 760 mmHg 
Flash Point: 306.8 °C
Index of Refraction: 1.67
Molar Refractivity: 96.63 cm³
Molar Volume: 258.6 cm³
Polarizability: 38.3×10^-24 cm³
Surface Tension: 48.9 dyne/cm 
Enthalpy of Vaporization: 87.24 kJ/mol
Vapour Pressure: 1.3E-13 mmHg at 25 °C
XLogP3: 2.2
H-Bond Donor: 1
H-Bond Acceptor: 3
Rotatable Bond Count: 2
Tautomer Count: 2
Exact Mass: 337.179027
MonoIsotopic Mass: 337.179027
Topological Polar Surface Area: 54.3
Heavy Atom Count: 25
Complexity: 602
Defined Atom StereoCenter Count: 2 
Canonical SMILES: CCNC(=O)C1CN(C2CC3=CN(C4=CC=CC(=C34)C2=C1)C(=O)C)C
Isomeric SMILES: CCNC(=O)[C@H]1CN([C@@H]2CC3=CN(C4=CC=CC(=C34)C2=C1)C(=O)C)C
InChI: InChI=1S/C20H23N3O2/c1-4-21-20(25)14-8-16-15-6-5-7-17-19(15)13(11-23(17)12(2)24)9-18(16)22(3)10-14/h5-8,11,14,18H,4,9-10H2,1-3H3,(H,21,25)/t14-,18-/m1/s1
InChIKey: UKRWCEJTOPSTEC-RDTXWAMCSA-N
Classification Code: Human Data

Poison by ingestion and intravenous routes. Ingesting very small amounts produce psychotropic effects in humans. When heated to decomposition it emits toxic fumes of NO_x. See also various lysergic acid entries.

 d-1-Acetyl lysergic acid monoethylamide (CAS NO.50485-03-5) is also named as 1-Acetyl-9,10-didehydro-N-ethyl-6-methylergoline-8-beta-carboxamide ; 1-Acetyllysergic acid ethylamide ; 4-25-00-00972 (Beilstein Handbook Reference) ; ALA-10 ; BRN 0051958 ; Ergoline-8-beta-carboxamide, 1-acetyl-9,10-didehydro-N-ethyl-6-methyl- . d-1-Acetyl lysergic acid monoethylamide (CAS NO.50485-03-5) is highly toxic. It is flammable. It will produce toxic nitrogen oxide fumes when buring. So the storage environment should be ventilate, low-temperature and dry.