CHEM Paraformaldehyde

(Polyoxymethylene)
OH(CH2O)n H   F.W. ~ 600   CAS #30525-89-4

Fixative. White free-flowing solid pellet (prill) with strong, pungent formaldehyde odor. Avoid strong oxidizing agents, temperatures above 38°C

Paraformaldehyde is the condensation product of methylene glycol, a substance not so far isolated in its pure form; it is a white solid with a formaldehyde content between 78 and 98% and is supplied either as a Prill or Granular. All forms contain more than 95.5% paraformaldehyde content. The Prill and Granular forms are small, free-flowing, dust-free beads, the most desired by EM users.

Polyoxymethylene (paraformaldehyde) is a powder of polymerised formaldehyde that by itself cannot fix tissues. A fast-penetrating EM fixative used in combination with Glutaraldehyde, Acrolein, and Osmium Tetroxide. Karnovsky, M.J., J. Cell Biol., 27, 137A (1965). Hayat, M.A. Principles & Tech., of EM (Univ. Park Press), 68 (1981).

Code Title Option 1 Option 2 Option 3 Availability* Price
C007 Paraformaldehyde, prill (DG) 500g 1 in stock AU $129.00
C007-1KG Paraformaldehyde, prill (DG) 1000g 0 in stock (?) AU $223.00
EMS19208 Paraformaldehyde, granular (DG) EM grade 500g 0 in stock (?) AU $125.00
EMS19210 Paraformaldehyde, granular (DG) EM grade 1000g 0 in stock (?) AU $215.00
EMS15949-50 Glutaraldehyde and paraformaldehyde, 0.1M sodium cacodylate buffered 0.35%/3% 10 x 10ml 0 in stock (?) AU $112.00
EMS15949-60 Glutaraldehyde and paraformaldehyde, 0.1M sodium cacodylate buffered 0.35%/3% 500ml 0 in stock (?) AU $239.00
EMS15960-01 Glutaraldehyde and paraformaldehyde, 0.1M sodium cacodylate buffered 2.5%/2% 10 x 10ml 0 in stock (?) AU $79.00
EMS15949-70 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 1%/4% 10 x 10ml 0 in stock (?) AU $117.00
EMS15949-80 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 1%/4% 500ml 0 in stock (?) AU $239.00
EMS15949-30 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2%/1% 10 x 10ml 0 in stock (?) AU $105.00
EMS15949-35 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2%/1% 500ml 0 in stock (?) AU $230.00
EMS16536-06 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2%/2% 10 x 10ml 0 in stock (?) AU $103.00
EMS16536-07 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2%/2% 500ml 0 in stock (?) AU $309.00
EMS16536-08 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2%/2% 1L 0 in stock (?) AU $543.00
EMS16537-06 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2.5%/1% 10 x 10ml 0 in stock (?) AU $101.00
EMS16537-07 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2.5%/1% 500ml 0 in stock (?) AU $308.00
EMS16537-08 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 2.5%/1% 1L 0 in stock (?) AU $541.00
EMS16538-06 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 3%/3% 10 x 10ml 0 in stock (?) AU $82.00
EMS16538-07 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 3%/3% 500ml 0 in stock (?) AU $160.00
EMS16538-08 Glutaraldehyde and paraformaldehyde, 0.1M phosphate buffered 3%/3% 1L 0 in stock (?) AU $236.00
EMS15952-10S Paraformaldehyde 4%, 0.1M sodium cacodylate buffer 10 x 10ml 0 in stock (?) AU $116.00
EMS15952-15S Paraformaldehyde 4%, 0.1M sodium cacodylate buffer 500ml 0 in stock (?) AU $263.00
C005 Formaldehyde (paraformaldehyde) 4% aqueous solution 10 x 10ml 0 in stock (?) AU $76.00
C005-100 Formaldehyde (paraformaldehyde) 4% aqueous solution 100ml 10+ in Stock AU $69.00
C005-1L Formaldehyde (paraformaldehyde) 4% aqueous solution 1L 0 in stock (?) AU $435.00
C006 Formaldehyde (paraformaldehyde) 8% aqueous solution 10 x 10ml 1 in stock AU $75.00
C006-100 Formaldehyde (paraformaldehyde) 8% aqueous solution 100ml 3 in stock AU $67.00
EMS15953-10 Paraformaldehyde 0.5%, 0.1M phosphate buffered 10 x 10ml 0 in stock (?) AU $72.00
EMS15953-15 Paraformaldehyde 0.5%, 0.1M phosphate buffered 500ml 0 in stock (?) AU $210.00
EMS15712 Formaldehyde (paraformaldehyde) 10% aqueous solution (DG) 10 x 10ml 3 in stock AU $82.00
EMS15712-S Formaldehyde (paraformaldehyde) 10% aqueous solution (DG) 100ml 0 in stock (?) AU $75.00
EMS15735-95 Paraformaldehyde 4%, 0.2M phosphate buffered saline 10 x 10ml 0 in stock (?) AU $108.00
EMS15735-100 Paraformaldehyde 4%, 0.2M phosphate buffered saline 500ml 0 in stock (?) AU $241.00
EMS15735-50S Paraformaldehyde 4%, 0.1M phosphate buffered pH 7.2 10 x 10ml 0 in stock (?) AU $106.00
EMS15735-60S Paraformaldehyde 4%, 0.1M phosphate buffered pH 7.2 500ml 0 in stock (?) AU $234.00
EMS15735-85 Paraformaldehyde 4%, 0.1M phosphate buffered pH 7.4 10 x 10ml 1 in stock AU $111.00
EMS15735-90 Paraformaldehyde 4%, 0.1M phosphate buffered pH 7.4 500ml 0 in stock (?) AU $238.00
EMS15735-70 Paraformaldehyde 4%, 0.2M phosphate buffered pH 7.2 10 x 10ml 0 in stock (?) AU $105.00
EMS15735-30S Paraformaldehyde 4%, 0.2M phosphate buffered pH 7.4 10 x 10ml 0 in stock (?) AU $93.00
EMS15735-80 Paraformaldehyde 4%, 0.2M phosphate buffered pH 7.2 500ml 0 in stock (?) AU $233.00
EMS15735-40S Paraformaldehyde 4%, 0.2M phosphate buffered pH 7.4 500ml 0 in stock (?) AU $230.00
EMS15952-10 Paraformaldehyde 1%, 0.1M phosphate buffered pH 7.4 10 x 10ml 0 in stock (?) AU $103.00
EMS15952-15 Paraformaldehyde 1%, 0.1M phosphate buffered pH 7.4 500ml 0 in stock (?) AU $224.00
EMS15735-10S Paraformaldehyde 4%, 0.1M phosphate buffered pH 7.4 10 x 10ml 0 in stock (?) AU $103.00
EMS15735-20S Paraformaldehyde 4%, 0.1M phosphate buffered pH 7.4 500ml 0 in stock (?) AU $233.00
EMS15951-10 Paraformaldehyde 0.5%, 0.1M phosphate buffered pH 7.4 10 x 10ml 0 in stock (?) AU $99.00
EMS15951-15 Paraformaldehyde 0.5%, 0.1M phosphate buffered pH 7.4 500ml 0 in stock (?) AU $224.00
EMS15951-15-1L Paraformaldehyde 0.5%, 0.1M phosphate buffered pH 7.4 1L 0 in stock (?) AU $326.00
EMS15951-15-1G Paraformaldehyde 0.5%, 0.1M phosphate buffered pH 7.4 3785ml 0 in stock (?) AU $829.00
C0042-1010 Formaldehyde (paraformaldehyde) 20% aqueous solution 10 x 10ml 0 in stock (?) AU $85.00
C0042B Formaldehyde (paraformaldehyde) 20% aqueous solution (DG) 100ml 10+ in Stock AU $94.00
C00432-1010 Formaldehyde (paraformaldehyde) 32% aqueous solution (DG) 10 x 10ml 0 in stock (?) AU $100.00
C00432-100 Formaldehyde (paraformaldehyde) 32% aqueous solution (DG) 100ml 1 in stock AU $106.00
C00432-1L Formaldehyde (paraformaldehyde) 32% aqueous solution (DG) 1L 0 in stock (?) AU $696.00
C004 Formaldehyde (paraformaldehyde) 16% aqueous solution (DG) 10 x 10ml 10+ in Stock AU $92.00
C004-100 Formaldehyde (paraformaldehyde) 16% aqueous solution (DG) 100ml 0 in stock (?) AU $85.00
C004-1L Formaldehyde (paraformaldehyde) 16% aqueous solution (DG) 1L 9 in stock AU $602.00