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.

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
EMS15953-10 Paraformaldehyde (formaldehyde) aqueous solution, 1% 10x10mL 2 weeks AU $69.00
EMS15953-15 Paraformaldehyde (formaldehyde) aqueous solution, 1% 500mL 2 weeks AU $202.00
C006 Paraformaldehyde (formaldehyde) 8% aqueous solution 10x10mL Only 2 AU $65.00
C006-100 Paraformaldehyde (formaldehyde) 8% aqueous solution 100ml bottle In Stock AU $63.00
EMS15712 Paraformaldehyde (formaldehyde) 10% aqueous solution (DG) 10x10mL leadtime:4-6 weeks AU $102.00
EMS15712-S Paraformaldehyde (formaldehyde) 10% aqueous solution (DG) 100ml bottle leadtime:4-6 weeks AU $87.00
EMS19208 Paraformaldehyde, granular (DG) EM grade 500g leadtime:4-6 weeks AU $120.00
EMS19210 Paraformaldehyde, granular (DG) EM grade 1kg leadtime:4-6 weeks AU $195.00
EMS15735-85 Paraformaldehyde 4% in 0.1M Phosphate Buffer Saline pH 7.4 10x10mL 2 weeks AU $103.00
EMS15735-90 Paraformaldehyde 4% in 0.1M Phosphate Buffer Saline pH 7.4 500mL 2 weeks AU $229.00
EMS15733-05 Carson's phosphate buffered paraformaldehyde 500mL 2 weeks AU $75.00
EMS15733-10 Carson's phosphate buffered paraformaldehyde 1000mL 2 weeks AU $117.00
EMS15952-10S Paraformaldehyde 4% in 0.1M Sodium Cacodylate Buffer pH 7.4 10x10mL 2 weeks AU $115.00
EMS15952-15S Paraformaldehyde 4% in 0.1M Sodium Cacodylate Buffer pH 7.4 500mL 2 weeks AU $254.00
EMS15735-50S Paraformaldehyde 4% in 0.1M Phosphate Buffer pH 7.2 10x10mL 2 weeks AU $103.00
EMS15735-60S Paraformaldehyde 4% in 0.1M Phosphate Buffer pH 7.2 500mL 2 weeks AU $226.00
EMS15735-30S Paraformaldehyde 4% in 0.2M phosphate buffer pH 7.4 10x10mL 2 weeks AU $92.00
EMS15735-40S Paraformaldehyde 4% in 0.2M phosphate buffer pH 7.4 500mL 2 weeks AU $222.00
EMS15735-70 Paraformaldehyde 4% in 0.2M Phosphate Buffer pH 7.2 10x10mL 2 weeks AU $102.00
EMS15735-80 Paraformaldehyde 4% in 0.2M Phosphate Buffer pH 7.2 500mL 2 weeks AU $225.00
EMS15735-100 Paraformaldehyde 4% in 0.2M Phosphate Buffer Saline pH 7.4 500mL 2 weeks AU $230.00
EMS15735-95 Paraformaldehyde 4% in 0.2M Phosphate Buffer Saline pH 7.4 10x10mL 2 weeks AU $105.00
CEMS15949-50 Glutaraldehyde and paraformaldehyde in 0.1M sodium cacodylate buffer pH 7.4 0.35%/3% 10x10mL 2 weeks AU $105.00
CEMS15949-60 Glutaraldehyde and paraformaldehyde in 0.1M sodium cacodylate buffer pH 7.4 0.35%/3% 500mL 2 weeks AU $228.00
CEMS15960-01 Glutaraldehyde and paraformaldehyde in 0.1M sodium cacodylate buffer pH 7.4 2.5%/2% 10x10mL 2 weeks AU $77.00
C004 Paraformaldehyde (formaldehyde) 16% aqueous solution (DG) 10x10mL In Stock AU $135.00
C004-100 Paraformaldehyde (formaldehyde) 16% aqueous solution (DG) 100mL bottle In Stock AU $89.00
C004-1L Paraformaldehyde (formaldehyde) 16% aqueous solution (DG) 1000mL In Stock AU $659.00
EMS15735-10S Paraformaldehyde in 0.1M phosphate buffer pH 7.4 4% 10x10mL Only 1 AU $98.00
EMS15735-20S Paraformaldehyde in 0.1M phosphate buffer pH 7.4 4% 500mL 2 weeks AU $223.00
EMS15951-10 Paraformaldehyde in 0.1M phosphate buffer pH 7.4 0.50% 10x10mL 2 weeks AU $96.00
EMS15951-15 Paraformaldehyde in 0.1M phosphate buffer pH 7.4 0.50% 500mL 2 weeks AU $213.00
EMS15952-10 Paraformaldehyde in 0.1M phosphate buffer pH 7.4 1% 10x10mL 2 weeks AU $99.00
EMS15952-15 Paraformaldehyde in 0.1M phosphate buffer pH 7.4 1% 500mL 2 weeks AU $213.00
C007 Paraformaldehyde, prill (DG) 500g Only 3 AU $122.00
C007-1KG Paraformaldehyde, prill (DG) 1kg leadtime:4-6 weeks AU $196.00
CEMS15949-30 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2% / 1% 10x10mL 2 weeks AU $98.00
CEMS15949-35 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2% / 1% 500mL 2 weeks AU $218.00
CEMS15949-70 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 1% / 4% 10x10mL 2 weeks AU $111.00
CEMS15949-80 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 1% / 4% 500mL 2 weeks AU $228.00
CEMS16536-06 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2% / 2% 10x10mL 2 weeks AU $98.00
CEMS16536-07 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2% / 2% 500mL 2 weeks AU $298.00
CEMS16536-08 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2% / 2% 1000mL 2 weeks AU $508.00
CEMS16537-06 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2.5% / 1% 10x10mL 2 weeks AU $95.00
CEMS16537-07 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2.5% / 1% 500mL 2 weeks AU $297.00
CEMS16537-08 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 2.5% / 1% 1000mL 2 weeks AU $505.00
CEMS16538-06 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 3% / 3% 10x10mL 2 weeks AU $77.00
CEMS16538-07 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 3% / 3% 500mL 2 weeks AU $152.00
CEMS16538-08 Glutaraldehyde and paraformaldehyde in 0.1M phosphate buffer, Ph 7.4 3% / 3% 1000mL 2 weeks AU $217.00
C005 Paraformaldehyde (formaldehyde) 4% aqueous solution 10x10mL In Stock AU $67.00
C005-100 Paraformaldehyde (formaldehyde) 4% aqueous solution 100mL bottle Only 2 AU $65.00
C005-1L Paraformaldehyde (formaldehyde) 4% aqueous solution 1L bottle 2 weeks AU $415.00
C00432-100 Paraformaldehyde (formaldehyde) 32% aqueous solution, (DG) 100ml bottle 2 weeks AU $82.00
C00432-1010 Paraformaldehyde (formaldehyde) 32% aqueous solution, (DG) 10x10mL Only 3 AU $90.00
C0042-1010 Paraformaldehyde (formaldehyde) 20% aqueous solution (DG) 10x10mL leadtime:4-6 weeks AU $107.00
C0042B Paraformaldehyde (formaldehyde) 20% aqueous solution (DG) 100ml bottle In Stock AU $90.00