FORMALDEHYDE 20%, 16%, 8%, and 4%, EM Grade

CAS No. 50-00-0

prepared from paraformaldehyde

A more efficient and rapid penetrant fixative used in combination with Glutaraldehyde and Acrolein fixatives.
Formaldehyde solution prepared from paraformaldehyde (polymerised formaldehyde). This saves much effort as the laboratory prepared material must be used on the day it's made. The product is methanol free. An excellent, rapidly penetrating fixative. May be used in combination with glutaraldehyde and acrolein fixatives, and is frequently used as an alternative to glutaraldehyde. The solution is not affected by UV light and it is preferable to not refrigerate, until buffer is added. Excellent shelf-life of over two years. Useable until precipitate occurs. Easy to break, pre-scored, 10mL ampoules sealed under inert gas. 100mL bottles available - ask
Note: Below 10% concentration this item may be shipped as non-dangerous goods and can be taken in check-in luggage on aircraft.

Some people require litre bottles. These are available on order within 1 month at similar prices as the smaller volumes; they are not a stock item.

Other concentrations are available.
C004
16% Paraformaldehyde (formaldehyde) aqueous solution
10% DISCOUNT FOR 10
AUD84.00
10x10mL
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C004-1L
Formaldehyde 16% solution (from paraformaldehyde)
AUD540.00
1L
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C0042B
20% Paraformaldehyde (formaldehyde) aqueous solution
10% DISCOUNT FOR 10
AUD79.00
100mL
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C005
4% Paraformaldehyde (formaldehyde) aqueous solution
10% DISCOUNT FOR 10
AUD57.00
10x10mL
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C006
8% Paraformaldehyde (formaldehyde) aqueous solution
10% DISCOUNT FOR 10
AUD58.00
10x10mL
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FARNESOL

3,7,11-Trimethyl-2,6,10-dodecatrien-1-ol, C15H26O F.W 222.57

Mixture of Stereoisomers: Approx. 90% Synthetic
Specific Gravity: 0.886
C099
Farnesol
AUD55.00
10mL
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FAST GREEN FCF

Food Green 3, C37H34N2Na2O10S3, Colour Index #42053, F.W.808.86, CAS#2353-45-9

Mammalian tissue stain for visualising collagen, muscle, cyto-plasma, cells and cornified epithelium.

Kornhauser, Stain Tech., 18,95 (1943); ibid., 20,23 (1945) Lillie, Arch.Path., 29,705 (1940) Modified Feulgen stain for visualising chromosomes in root tips and other meristematic tissue.

DeTomasi,Stain Tech., 11,137 (1936). In plant histology. O.Conn,Biological Stains 9th ed., Williams & Wilkens Co., Baltimore (1977); Haynes, Stain Tech., 3,40 (1928)
C100
Fast Green FCF, C.I. 42053
AUD27.00
25g
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C1001
Fast Green FCF, C.I. 42053
AUD65.00
100g
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C1005
Fast Green FCF, C.I. 42053
5% DISCOUNT FOR 2
AUD245.00
500g
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FORMVAR

Polyvinyl Formvar desiccated

For the preparation of thin support films. Soluble in chloroform, dioxane or ethylene dichloride.

An already made-up solution is also available. The small packaging exempts from the dangerous goods shipping regulations, even in multiples of 25ml.

C064
Formvar 15/95 resin
AUD39.00
100g
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C064S
Formvar solution 0.5% in ethylene dichloride
10% DISCOUNT FOR 5
AUD19.00
25mL
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GENTIAN VIOLET

Crystal violet, Colour Index #42555.

For use in the Gram stain; the Flemington triple stain with iodine; and Newton's crystal violet-iodine technique.


This dye was used widely as a fungicide. It is no longer sold through Chemists as it has been found to be carcinogenic. We supply Gentian violet as a laboratory dye, but it is also used in aquaria and on animals. ProSciTech Pty Ltd does not recommend its use on people.

C095
Gentian Violet, C.I. 42555
AUD21.00
25g
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C0951
Gentian Violet, C.I. 42555
AUD39.00
100g
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C0955
Gentian Violet, C.I. 42555
5% DISCOUNT FOR 2
AUD126.00
500g
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GIEMSA STAIN
For staining fresh peripheral blood smears and blood parasites and in Wolbach's tissue stain.
Inquire for 1kg price.
C109
Giemsa stain, certified
AUD25.00
25g
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C1091
Giemsa stain, certified
AUD58.00
100g
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C1095
Giemsa stain, certified
AUD217.00
500g
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GLUTARALDEHYDE 0.625% IN PHOSPHATE BUFFER, PH 7.4

Glutaraldehyde, Pre‐Made, Ready‐to‐Use, in Buffer.


Also available and in stock is C16539‐06 Glutaraldehyde 4% in 0.1M Sodium Cacodylate Buffer, pH 7.4 10x10mL AUD58.20

C16535-05
Glutaraldehyde 0.625% in Phosphate Buffer, pH 7.4
AUD270.00
500mL
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C001
GA - GLUTARALDEHYDE

Vacuum distilled, free from polymer and other contaminants. Each lot has been tested and assayed. Polymers re‐form depending on storage time and temperature. Available in bottles or in pre‐scored, snap‐open, easy break amber ampoules, sealed under nitrogen. Refrigerated its shelf life is about one year, or freeze to prolong shelf life substantially. An arbitrary storage guide: deep freeze last 5 years ; fridge freezer ‐ 2 years. Fridge ‐ 1 year, room temperature a week or two.
Anhydrous glutaraldehyde (in acetone) is available, but it is a DG for shipping with a maximum shelf life of 6 months, refrigerated.

C001 and C002 Glutaraldehyde SDS
C003 Glutaraldehyde SDS
C00370 Glutaraldehyde SDS
C003701 Glutaraldehyde ‐ See SDS for C00370 (above).

Glutaraldehyde (GA) at these concentrations were recently classified as Dangerous Goods (DG) for shipping. Shipping by air now incurs a DG cost of AUD250 to 400 (please request quote). We therefore recommend switching to prepared Paraformaldehyde (pure formalin, C004) as the primary fixative if possible, or using prepared 3% GA in buffer (not a DG). More info on shipping Glutaraldehyde.


For road shipments, the challenge is to keep materials from reaching higher temperatures, and if only for a limited time. We use insulation and plenty of ice. This is intended to extend the shelf life of the product only ‐ Glutaraldehyde at RT deteriorates slowly, and for fixation processes it does not matter if kept for several days at room temperature. The exceptions are immuno‐ and histochemistry, in which case pure formalin is probably the better fixative.


We generally ship cold items on Mondays to reduce the number of days in transit.

Please choose the appropriate ice quantity to add you your order; extra ice may be needed for larger orders.


Qld ‐ 1 kg ice

ACT, NSW, SA, Vic ‐ 2 kg ice

NT, WA, Tas ‐ unsuited for shipping by road


3% GA already made up in buffer is available in 100mL bottles and that product can be shipped by air. See C008‐B below.

C001
Glutaraldehyde 25% solution
10% DISCOUNT FOR 10
AUD68.00
100mL
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C002
Glutaraldehyde 25% solution (ampoules)
10% DISCOUNT FOR 10
AUD88.00
10x10mL
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C003
Glutaraldehyde 50% solution (ampoules)
AUD101.00
10x10mL
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C00370
Glutaraldehyde 70% solution (ampoules)
AUD83.00
10x2mL
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C003701
Glutaraldehyde 70% solution (ampoules)
AUD125.00
10x10mL
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ICE1
Ice charges, 1kg (QLD)
AUD15.00
1kg
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ICE2
Ice charges, 2kg (NSW, ACT, VIC)
AUD20.00
2kg
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GLUTARALDEHYDE 3% IN SODIUM PHOSPHATE BUFFER, PH 7.2

No longer available in ampoules. Supplied in plastic bottles .
3% in moderate quantities is not regarded as a DG. So we can ship this by air and include less ice. Costs for ice, cooler and air shipping within Australia are included in the price. GA made up in this buffer is one way to ship GA cold to the more distant Australian cities.

C008-B
Glutaraldehyde 3% in Soerensens phosphate buffer, 0.1M, pH 7.2, 100mL
10% DISCOUNT FOR 10
AUD99.00
100mL
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GMA (Glycol methacrylate)

Low Acid
Water soluble monomer.
(2-Hydroxyethyl methacrylate monomer, inhibited; HEMA).
C6H10O3 F.W. 130.14 CAS#868-77-9 Specific Gravity: 1.07
b.p. 67°C.
Inhibited with approximately 330ppm MEHQ.
A water soluble monomer.

C057
Glycol methacrylate
AUD112.00
450mL
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GMA EMBEDDING KIT

Water soluble
Glycol methacrylate embedding medium for excellent preservation. Good for E.M., L.M. and histological applications.
Leduc & Bernard, Ultrastruct.Res., 4, 196-99 (1967).


Components:

  • 450mL Glycol methacrylate (C057, can be ordered separately)
  • 225mL n-Butyl methacrylate (C042, can be ordered separately)
  • 15g 2,4-Dichlorobenzoyl peroxide
C037
GMA embedding kit
AUD227.00
ea
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GOLD CHLORIDE

hydrate H(AuCl4) :H2O. F.W. 229.79

Chloroauric acid; hydrogen tetrachloroaurate; gold trichloride, acid.
Assay 99.9985%. Gold content 49%+.
Used in histology for staining of nerves. This highly purified gold compound may be used for the preparation of colloidal gold sols. Golden-yellow to reddish, highly hygroscopic, crystals. Deteriorates readily in UV light, is caustic on skin, dissolves well in water and alcohol.
C106
Gold chloride
10% DISCOUNT FOR 10
AUD139.00
1g
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