TANNIC ACID

C76H52O46 F.W. 1701.18, CAS# 1401-55-4

Reagent / A.C.S. grade. Galloylglucose.
Low molecular weight. Mordant used in combination with glutaraldehyde and osmium tetroxide to improve membrane contrast.

C081
Tannic acid
100g
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TARTRAZINE

Colour Index #19140
C16H9N4Na3O9S2, F.W. 534.37, CAS No. 1934-21-0

Also known as; Acid Yellow 23
Tatrazine is used as a contrast stain that is sometimes substituted for Orange G in animal histology.

C145
Tartrazine, C.I. 19140
25g
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C1451
Tartrazine, C.I. 19140
100g
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C1455
Tartrazine, C.I. 19140
500g
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Technovit® H7100 GMA EMBEDDING KIT

Technovit® Glycol Methacrylate embedding kits were developed by Kulzer in Germany. They are most convenient to use, and offer the best embedding results.


Features

  • Technovit® GMA kits result in improved morphology,and allow for 1 micron serial sectioning.
  • Technovit® 7100 GMA is less sensitive to oxygen during polymerisationmaking sealing of the moulds unnecessary.
  • The polymerisation temperature never exceeds 40°C, making Technovit® a great choice for enzyme histochemistry.
  • Consistent high quality of raw materials used produces permanent clear colourless blocks and reproducible results.


Consists of:

  • 500mL Glycol methacrylate monomer
  • 5 x 0.6g packs hardener I
  • 40mL hardener II


Technovit H7100/H8100 technical data sheet

C031
Technovit® H7100 GMA embedding kit
ea
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THYMOL BLUE

CAS# 76-61-9, C27H30O5S, F.W.: 221 - 224°C


This indicator is a member of the sulfonephthalein series of acid‐base indicators.
Visual‐transitions intervals: acid range from pH 1.2(red) to pH 2.8(yellow); alkaline range from pH 8.0(yellow) to pH 9.2(blue).

C103
Thymol Blue free acid, ACS
100g
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C1035
Thymol Blue free acid, ACS
500g
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TOLUIDINE BLUE O

Cas# 92-31-9, Colour Index #52040, C15H16N3SCI F.W. 305.83

Also known as; Basic Blue 17 or Tolonium chloride. General stain for epoxy thick sections and wide histological applications.

C078
Toluidine Blue O, certified, C.I. 52040
50g
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TRYPAN BLUE

Colour Index #23850, CAS 72-57-1, C34H24N6Na4O14S4, FW: 960.82.

Synonyms: Direct Blue 14; Niagra Blue 3B; Soluble in water <0.1mg/mL and 0.6mg/mL in ethanol. Trypan Blue is a blue acid dye with two azo chromophores. In biology it is widely used as a teratogenic ‐ vital stain. This relates to the H ‐ acid moieties, which are adsorbed onto protein.

C091
Trypan Blue, C.I. 23850
100g
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C0915
Trypan Blue, C.I. 23850
5% DISCOUNT FOR 2
500g
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Non-radioactive substitute for uranyl acetate
Non-radioactive substitute for uranyl acetate

UAR-EMS URANYL ACETATE REPLACEMENT STAIN

A non-radioactive substitute for uranyl acetate with comparable results. Avoids the tedious authorization, shipping and disposal issues involving uranyl acetate without sacrificing performance. Two lanthanide salts, samarium and gadolinium triacetate, effectively used for positive staining of plastic-embedded animal and plant tissues. Also for negative staining of macromolecules. Not recommended as a fixative.
This item is not a DG.

C076
UAR-EMS Uranyl acetate replacement stain
25mL
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URANYL ACETATE

CAS #541‐09‐3, UO2(OCOCH3)2·2H2O F.W. 424.14

Assay 98.0‐102.0%
Specifications: Insoluble Matters ............................................

Universal EM stain for thin sections and negative staining.
Radioactive (contains 50% uranium) non‐cumulative poison.

The price of C079 does not include freight. The Dangerous Goods freight cost per order is the same for one or multiple units. Ordering several units will reduce the overall price/unit.

C079
Uranyl acetate
25g
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C079-F
DG freight
ea
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WRIGHT'S STAIN

CAS# 68988-92-1

Eosin Methylene Blue according to Wright.

For use in staining blood and bone marrow films, also for staining parasites in blood films.

C148
Wright's stain, certified
25g
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C1481
Wright's stain, certified
100g
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C1485
Wright's stain, certified
500g
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