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The label starts with 'R' which probably stands for reverse because chemical nomenclature often uses prefixes like di-, tri-, but there's also "Nitro" in the name. The numbers and letters after that suggest it might be a specific compound, possibly something regulated or controlled. Let me parse each part: 4713 could be a unique identifier, maybe from a database or inventory system. Then there's "(R) 1 Nitro 2 (2 thienyl)propane; 799812 12 7". Breaking down the chemical name. "Propane" is the base chain with three carbons. The '(2 thienyl)' part indicates substituents, likely two thiophene groups attached to carbon number 2. Nitro group (-NO2) is probably there too. So combining these, it's a propane molecule with a nitro group and two thienyl rings. Now the numbers: '799812' might be CAS registry numbers or batch codes. The dashes between '12' and '7' could separate different attributes—maybe purity, expiration date, etc.? But in this context, they