470 Bytes

	original_column_name,data_format,combined_description
	atom_id,text,the unique id of atoms
	molecule_id,text,identifying the molecule to which the atom belongs. Additional notes: TRXXX_i represents ith atom of molecule TRXXX
	element,text,"the element of the toxicology. Additional notes: cl: chlorine, c: carbon, h: hydrogen, o: oxygen, s: sulfur, n: nitrogen, p: phosphorus, na: sodium, br: bromine, f: fluorine, i: iodine, sn: Tin, pb: lead, te: tellurium, ca: Calcium"

Xet efficiently stores files, intelligently splitting them into unique chunks and accelerating uploads and downloads. More info.