Tris is widely used in the preparation of buffers in biochemistry and molecular biology experiments. In addition, Tris is the intermediate for the preparation of surfactants, vulcanization accelerators and some drugs.

HEPES (4-hydroxyethylpiperazine ethanesulfonic acid) is a non-ionic amphoteric buffer that is highly polar and inert to a wide range of chemicals and enzymes.

3 - morpholine propyl sulfonic acid is a kind of biological buffer, used in biochemical diagnostic kit, DNA/RNA extraction kit and PCR diagnostic kits

Synonym(s)：Paraformaldehyde Empirical Formula：（CH2O)n CAS Number：30525-89-4 EC Number： Molecular Weight：90.08 Assay：≥92.0 Catalog Number：D0514 Retest period：Two years SPECIFICATION  PROPERTIES STANDARD Appearance White granules or powder Assay,% ≥92.0 Water Content,% 1.5-4.0 Ash % ≤0.1 Acidity (as formic acid)% ≤0.05 Iron ion ≤0.002 degree of aggregation ≤30 Description     Polyoxymethylene (IUPAC named Polyoxymethylene, POM) for the polymer of formaldehyde (high molecular weight polyformaldehyde), the general structure of the length of eight to one hundred units (> 100 units is called polyformaldehyde). Long-chain paraformaldehyde is commonly used in heat-resistant plastics, also known as paraformaldehyde plastics. Paraformaldehyde decomposes rapidly, releasing slightly foul-smelling formaldehyde. Paraformaldehyde is produced by concentrating and dehydrating a 37% aqueous solution of formaldehyde. The finished product can replace the aqueous formaldehyde solution to participate in the chemical reaction, not only to improve the production efficiency, but also greatly reduce the amount of wastewater treatment, both energy-saving and environmentally friendly. In addition, compared with aqueous formaldehyde solution, paraformaldehyde has more advantages in storage and transportation. Application     First, pesticide field: the main use of paraformaldehyde is used in the synthesis of glyphosate, glyphosate, butachlor and other herbicides. Second, resin materials: paraformaldehyde can be used in the synthesis of high-quality resins, mainly used in engineering plastics and other fields. Third, chemical reagent: paraformaldehyde is an important chemical reagent, can be used as organic synthesis experiments in hydroxymethylation and other basic chemical reactions of the common reagents. Life science: In the field of life science and medical research, its 4% solution is called “paraformaldehyde fixative”, which is used for the treatment of tissue cells. Package Size     500kg/Dag. Custom packaging service available per request Storage/Shipping     Dry and sealed storage For Research and Development Use Only. Not approved for use in clinical or in vitro diagnostic procedures.

Guanidinium chloride or guanidine hydrochloride, usually abbreviated GuHCl and sometimes GdnHCl or GdmCl, is the hydrochloride salt of guanidine.