The Lumazine, with CAS registry number 487-21-8, belongs to the following product category of Heterocycles. It has the systematic name of Pteridine-2,4(1H,3H)-dione. Its other registry number is 27899-40-7. When ues this chemical, please do not breathe dust and avoid contact with skin and eyes. This chemical is light yellow to ochre powder. The product should be sealed and stored in cool and dry place.

Physical properties about this chemical are: (1)# of Rule of 5 Violations: 0; (2)ACD/BCF (pH 5.5): 1; (3)ACD/BCF (pH 7.4): 1; (4)ACD/KOC (pH 5.5): 17.098; (5)ACD/KOC (pH 7.4): 15.467; (6)#H bond acceptors: 6; (7)#H bond donors: 2; (8)#Freely Rotating Bonds: 0; (9)Polar Surface Area: 83.98 Å²; (10)Index of Refraction: 1.602; (11)Molar Refractivity: 36.955 cm³; (12)Molar Volume: 107.771 cm³; (13)Surface Tension: 68.816 dyne/cm.

You can still convert the following datas into molecular structure: 
(1)SMILES: c1cnc2c(n1)c(=O)[nH]c(=O)[nH]2
(2)InChI: InChI=1/C6H4N4O2/c11-5-3-4(8-2-1-7-3)9-6(12)10-5/h1-2H,(H2,8,9,10,11,12)
(3)InChIKey: UYEUUXMDVNYCAM-UHFFFAOYAF
(4)Std. InChI: InChI=1S/C6H4N4O2/c11-5-3-4(8-2-1-7-3)9-6(12)10-5/h1-2H,(H2,8,9,10,11,12)
(5)Std. InChIKey: UYEUUXMDVNYCAM-UHFFFAOYSA-N

The toxicity data is as follows: