Pentetic acid or diethylenetriaminepentaacetic acid (DTPA) is an aminopolycarboxylic acid consisting of a diethylenetriamine backbone with five carboxymethyl groups. The molecule can be viewed as an expanded version of EDTA and is used similarly. It is a white, water-soluble solid.

Benzyl alcohol is an aromatic alcohol with the formula C6H5CH2OH. The benzyl group is often abbreviated “Bn” (not to be confused with “Bz” which is used for benzoyl), thus benzyl alcohol is denoted as BnOH. Benzyl alcohol is a colorless liquid with a mild pleasant aromatic odor.

Calcium chloride are inorganic compounds with the chemical formula CaCl2(H2O)x, where x = 0, 1, 2, 4, and 6. All of these salts are a highly soluble in water. They are mainly used for deicing and dust control. Because the anhydrous salt is hygroscopic, it is used as a desiccant.

Acetic acid is a colourless liquid or crystal with a sour, vinegar-like odour and is one of the simplest carboxylic acids and is an extensively used chemical reagent. Acetic acid has wide application as a laboratory reagent, in the production of cellulose acetate mainly for photographic film and polyvinyl acetate for wood glue, synthetic fibres, and fabric materials. Acetic acid has also been of large use as a descaling agent and acidity regulator in food industries.

Paraformaldehyde (PFA), CAS 30525-89-4, commonly known as solid formaldehyde or secondary formaldehyde, is a low-degree-of-polymer linear polymer of formaldehyde with the molecular formula HO(CH2O)nH (n is usually 8–100, but industrially n≈30 is common). It provides high concentrations of formaldehyde in solid form, facilitating storage, transportation, and measurement. It can depolymerize into formaldehyde monomers upon heating or under alkaline/hot water conditions, making it an ideal raw material for reactions involving anhydrous or low-water formaldehyde.

Hydroquinone (hydroquinone) is an important fine chemical intermediate. Our company can stably supply products in multiple grades, including photographic grade, industrial grade, and analytical grade. We strictly adhere to national standards such as GB/T 22392-2008 and GB/T 23959-2009, and support third-party testing (SGS, BV, etc.). Leveraging major ports such as Qingdao Port, Tianjin Port, and Shanghai Port, we can efficiently arrange export sea freight and support small-batch trial orders and customized packaging.