The CAS registry number of Direct Fast Yellow 5GL is 2829-42-7. The IUPAC name is (3E)-3-(2-{4-[({4-[(2E)-2-(3-carboxylato-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]phenyl}carbamoyl)amino]phenyl}hydrazinylidene)-6-oxocyclohexa-1,4-diene-1-carboxylate.  Its EINECS number is 220-592-6. It belongs to the product categories of Dyes and Pigments; Organics. In addition, the molecular formula is C₂₇H₂₀N₆O₇·2Na and the formula weight is 586.45. What's more, it should be stored in a airtight, cool and dry place. This material may have harm to the environment, especially to the water.

Physical properties of Direct Fast Yellow 5GL are: (1)ACD/LogP: 1.85; (2)# of Rule of 5 Violations: 3; (3)ACD/LogD (pH 5.5): -3; (4)ACD/BCF (pH 5.5): 1 ; (5)ACD/KOC (pH 5.5): 1; (6)#H bond acceptors: 13; (7)#H bond donors: 6; (8)#Freely Rotating Bonds: 8; (9)Polar Surface Area: 163.49 Å².

You can still convert the following datas into molecular structure:
(1)SMILES: [Na+].[Na+].O=C([O-])\C4=CC(=N/Nc3ccc(NC(=O)Nc2ccc(N/N=C/1\C=C/C(=O)C(\C([O-])=O)=C\1)cc2)cc3)/C=C\C4=O
(2)InChI: InChI=1S/C27H20N6O7.2Na/c34-23-11-9-19(13-21(23)25(36)37)32-30-17-5-1-15(2-6-17)28-27(40)29-16-3-7-18(8-4-16)31-33-20-10-12-24(35)22(14-20)26(38)39;;/h1-14,30-31H,(H,36,37)(H,38,39)(H2,28,29,40);;/q;2*+1/p-2/b32-19+,33-20+
(3)InChIKey: NPQLRSWJRSHFMF-CTLWQRGVSA-L