@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			HeteroAtomSmilesAndLambda other = (HeteroAtomSmilesAndLambda) obj;
			if (lambdaConvention == null) {
				if (other.lambdaConvention != null)
					return false;
			} else if (!lambdaConvention.equals(other.lambdaConvention))
				return false;
			if (smiles == null) {
				if (other.smiles != null)
					return false;
			} else if (!smiles.equals(other.smiles))
				return false;
			return true;
		}