The CAS register number of Benzenediazonium,2,5-dimethoxy-4-[2-(4-nitrophenyl)diazenyl]- is 27766-47-8. It also can be called as BlacksaltK and the systematic name about this chemical is 2,5-dimethoxy-4-(4-nitrophenyl)azo-benzenediazonium. The molecular formula about this chemical is C₁₄H₁₂N₅O₄ and the molecular weight is 314.27618. It belongs to the following product categories which include Dyes and Pigments.

Physical properties about Benzenediazonium,2,5-dimethoxy-4-[2-(4-nitrophenyl)diazenyl]- are: (1)#H bond acceptors: 9; (2)#Freely Rotating Bonds: 6; (3)Polar Surface Area: 117.15 Å².

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes and harmful by inhalation, in contact with skin and if swallowed. It may cause inflammation to the skin or other mucous membranes and that at low levels cause damage to health. It may also cause cancer and harm to the unborn child. If you want to use this chemical, obtain special instructions before use, avoid exposure and wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: COc2cc([N+]#N)c(cc2N=Nc1ccc(cc1)[N+]([O-])=O)OC
(2)InChI: InChI=1/C14H12N5O4/c1-22-13-8-12(14(23-2)7-11(13)16-15)18-17-9-3-5-10(6-4-9)19(20)21/h3-8H,1-2H3/q+1
(3)InChIKey: AXQTUUPVMIBBKV-UHFFFAOYAC
(4)Std. InChI: InChI=1S/C14H12N5O4/c1-22-13-8-12(14(23-2)7-11(13)16-15)18-17-9-3-5-10(6-4-9)19(20)21/h3-8H,1-2H3/q+1
(5)Std. InChIKey: AXQTUUPVMIBBKV-UHFFFAOYSA-NYou can still convert the following datas into molecular structure:
(1)SMILES: COc2cc([N+]#N)c(cc2N=Nc1ccc(cc1)[N+]([O-])=O)OC
(2)InChI: InChI=1/C14H12N5O4/c1-22-13-8-12(14(23-2)7-11(13)16-15)18-17-9-3-5-10(6-4-9)19(20)21/h3-8H,1-2H3/q+1
(3)InChIKey: AXQTUUPVMIBBKV-UHFFFAOYAC
(4)Std. InChI: InChI=1S/C14H12N5O4/c1-22-13-8-12(14(23-2)7-11(13)16-15)18-17-9-3-5-10(6-4-9)19(20)21/h3-8H,1-2H3/q+1
(5)Std. InChIKey: AXQTUUPVMIBBKV-UHFFFAOYSA-N