The Fast Red TR Salt 1,5-naphthalenedisulfonate salt with the CAS number 51503-28-7 is also called 4-chloro-2-methyl-benzenediazonium; naphthalene-1,5-disulfonate. The systematic name is bis(4-chloro-2-methylbenzenediazonium) naphthalene-1,5-disulfonate. Its molecular formula is C₁₀H₆O₆S₂^.2(C₇H₆ClN₂). The EINECS registry number is 257-247-4. This chemical should be stored at −20°C.

While using the Fast Red TR Salt 1,5-naphthalenedisulfonate salt, you should be very cautious. This chemical is not only irritating to skin, but also irritating to eyes and respiratory system. Therefore, you should take the following instructions. Firstly, you should wear suitable protective clothing, gloves and eye/face protection. Then in case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: N#[N+]c1ccc(Cl)cc1C.[O-]S(=O)(=O)c2cccc1c2cccc1S([O-])(=O)=O.Cc1cc(Cl)ccc1[N+]#N
(2)InChI: InChI=1/C10H8O6S2.2C7H6ClN2/c11-17(12,13)9-5-1-3-7-8(9)4-2-6-10(7)18(14,15)16;2*1-5-4-6(8)2-3-7(5)10-9/h1-6H,(H,11,12,13)(H,14,15,16);2*2-4H,1H3/q;2*+1/p-2
(3)InChIKey: PSAWWJOJWWUTJJ-NUQVWONBAD