Product Name：Fluorescent Brightener 251
Synonyms：C.I. 406233; C.I. Fluorescent Brightener 114; 4,4'-Bis[[4-[(2-hydroxyethyl)amino]-6-(m-sulfoanilino)-1,3,5-triazin-2-yl]amino]-2,2'-stilbenedisulfonic acid tetrasodium salt
Molecular Formula：C36H32N12O14S4-4.4[NA+]
Molecular Weight：1076.93048
