add IUPAC Name and InChI to compound record (#1)

Author: Im-0xea

lib/pubchem_api.rb

@@ -20,7 +20,7 @@ def initialize(data)
  end
 
  class CompoundRecord < APIResponse
- attr_reader :cid, :molecular_formula, :molecular_weight, :canonical_smiles, :inchi_key
+ attr_reader :cid, :iupac_name, :molecular_formula, :molecular_weight, :canonical_smiles, :inchi, :inchi_key
 
  def initialize(data)
  super(data)
@@ -29,9 +29,11 @@ def initialize(data)
 
  # Extract properties from the 'props' array
  props = compound['props']
+ @iupac_name = extract_prop(props, 'IUPAC Name')
  @molecular_formula = extract_prop(props, 'Molecular Formula')
- @molecular_weight = extract_prop(props, 'Molecular Weight').to_f
+ @molecular_weight = extract_prop(props, 'Molecular Weight')
  @canonical_smiles = extract_prop(props, 'SMILES', 'Canonical')
+ @inchi = extract_prop(props, 'InChI', 'Standard')
  @inchi_key = extract_prop(props, 'InChIKey', 'Standard')
  end