Cynor Laboratories

Pyridine-4-carboxaldehyde, also known as 4-pyridinecarbaldehyde or isonicotinaldehyde, is an organic compound with the chemical formula C6H5NO. It is a colorless liquid, though older samples may appear yellow or even brown. It's one of three isomeric pyridinaldehydes, the others being pyridine-2-carboxaldehyde and pyridine-3-carboxaldehyde. 

1,2-Pentanediol is a colorless to yellowish, oily liquid with a chemical formula of C5H12O2cap C sub 5 cap H sub 12 cap O sub 2𝐶5𝐻12𝑂2 that is miscible with water and used as an intermediate in chemical synthesis, a humectant in cosmetics, and an antibacterial agent. It is also known as pentane-1,2-diol or pentylene glycol and is a chiral molecule. Its physical properties include a density of approximately 0.971 g/cm30.971 g/cm cubed0.971 g/cm3, a boiling point of around 206−210∘C206 minus 210 raised to the composed with power cap C206−210∘𝐶, and a flash point of 104∘C104 raised to the composed with power cap C104∘𝐶.