Biphenyls are organic compounds with the chemical formula C12H10. They are white crystalline powders, insoluble in water, acids and alkalis, and soluble in organic solvents such as alcohol, yeast, and benzene.

White crystal or powder, is a low-toxicity biologically inert amino alcohol, soluble in ethanol and water, slightly soluble in ethyl acetate, benzene, insoluble in ether, carbon tetrachloride.

Bisphenol S, white needle-like crystals.The molecule of this product contains two hydroxyl groups and a sulfone group with strong electron absorption, so it is more acidic than other phenols.Low toxicity.

Methyltetrahydrophthalic anhydride is a new type of liquid organic anhydride epoxy resin curing agent with excellent performance.

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