Paraformaldehyde
(Polyoxymethylene)
OH(CH2O)n H F.W. ~ 600 CAS #30525-89-4
Fixative. White free-flowing solid pellet (prill) with strong, pungent formaldehyde odour. Avoid strong oxidising 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).
CHEM Paraformaldehyde
| Code | Title | Option 1 | Option 2 | Option 3 | Availability* | Price | |
|---|---|---|---|---|---|---|---|
| C0072-1000 | Paraformaldehyde, granular, EM grade (DG) | 1000g | 0 in stock (?) | AU $325.00 | |||
| C0072-500 | Paraformaldehyde, granular, EM grade (DG) | 500g | 1 in stock | AU $316.00 | |||
| C005 | Formaldehyde (paraformaldehyde) 4% aqueous solution, EM grade | 10 x 10ml | No ETA | AU $93.00 | |||
| C005-100 | Formaldehyde (paraformaldehyde) 4% aqueous solution, EM grade | 100ml | 6 in stock | AU $77.00 | |||
| C005-1L | Formaldehyde (paraformaldehyde) 4% aqueous solution, EM grade | 1L | No ETA | AU $489.00 | |||
| C006 | Formaldehyde (paraformaldehyde) 8% aqueous solution, EM grade | 10 x 10ml | 4 in stock | AU $89.00 | |||
| C006-100 | Formaldehyde (paraformaldehyde) 8% aqueous solution, EM grade | 100ml | 1 in stock | AU $80.00 | |||
| C00401-10x10 | Formaldehyde (paraformaldehyde) 1% aqueous solution, EM grade | 10 x 10ml | No ETA | AU $88.00 | |||
| C00401-500 | Formaldehyde (paraformaldehyde) 1% aqueous solution, EM grade | 500ml | No ETA | AU $247.00 | |||
| C0042-1010 | Formaldehyde (paraformaldehyde) 20% aqueous solution | 10 x 10ml | 2 in stock | AU $106.00 | |||
| C0042B | Formaldehyde (paraformaldehyde) 20% aqueous solution, EM grade (DG) | 100ml | 6 in stock | AU $190.00 | |||
| C004 | Formaldehyde (paraformaldehyde) 16% aqueous solution, EM grade (DG) | 10 x 10ml | 0 in stock (?) | AU $119.00 | |||
| C004-100 | Formaldehyde (paraformaldehyde) 16% aqueous solution, EM grade (DG) | 100ml | 0 in stock (?) | AU $185.00 | |||
| C004-1L | Formaldehyde (paraformaldehyde) 16% aqueous solution, EM grade (DG) | 1L | 0 in stock (?) | AU $654.00 | |||
| EMS15700-DWS | Formaldehyde (paraformaldehyde) 16% aqueous solution, EM grade (DG) | 10ml | 0 in stock (?) | P.O.R. | Quote | ||
| C00542-1010 | Paraformaldehyde 4% solution, 0.1M phosphate buffered | pH 7.2 | 10 x 10ml | No ETA | AU $121.00 | ||
| C00542-500 | Paraformaldehyde 4% solution, 0.1M phosphate buffered | pH 7.2 | 500ml | 1 in stock | AU $266.00 | ||
| C00543-1010 | Paraformaldehyde 4% solution, 0.1M phosphate buffered | pH 7.4 | 10 x 10ml | No ETA | AU $120.00 | ||
| C00543-500 | Paraformaldehyde 4% solution, 0.1M phosphate buffered | pH 7.4 | 500ml | 1 in stock | AU $197.00 | ||
| C00547-1010 | Paraformaldehyde 4% solution, 0.1M phosphate buffered saline | pH 7.4 | 10 x 10ml | No ETA | AU $124.00 | ||
| C00547-500 | Paraformaldehyde 4% solution, 0.1M phosphate buffered saline | pH 7.4 | 500ml | No ETA | AU $265.00 | ||
| C0041-100 | Formaldehyde (paraformaldehyde) 10% aqueous solution, EM grade (DG) | 100ml | No ETA | AU $89.00 | |||
| C0041-1010 | Formaldehyde (paraformaldehyde) 10% aqueous solution, EM grade (DG) | 10 x 10ml | No ETA | AU $98.00 | |||
| C00432-1010 | Formaldehyde (paraformaldehyde) 32% aqueous solution (DG) | 10 x 10ml | No ETA | AU $119.00 | |||
| C00432-100 | Formaldehyde (paraformaldehyde) 32% aqueous solution, EM grade (DG) | 100ml | 0 in stock (?) | AU $198.00 | |||
| C00432-1L | Formaldehyde (paraformaldehyde) 32% aqueous solution, EM grade (DG) | 1L | 0 in stock (?) | AU $899.00 | |||
| EB2000 | BenchRocker 2D rocker, adjustable speed | 2D rocker | Each | 0 in stock (?) | AU $945.00 | ||
| EB2000-MF | BenchRocker 2D rocker, adjustable speed | Rubber mat | Each | 0 in stock (?) | AU $155.52 | ||
| EB2000-SPF | BenchRocker 2D rocker, adjustable speed | Stacking platform, flat mat | Each | 0 in stock (?) | AU $264.00 | ||
| C0041-1010 | Formaldehyde (paraformaldehyde) 10% aqueous solution, EM grade (DG) | 10 x 10ml | No ETA | AU $98.00 | |||
| C0041-100 | Formaldehyde (paraformaldehyde) 10% aqueous solution, EM grade (DG) | 100ml | No ETA | AU $89.00 |