NMA
to Orange

NMA, (Methyl-5-Norbornene-2,3-Dicarboxylic Anhydride)
C10H10O3 F.W. 178.19 CAS #25134-21-8
Specific Gravity @20/20°C : 1.245
b.p. @ 10mm Hg : 140°C
An epoxy hardener
RT | 19000 | 450 ml | 18.00 | Add to Cart | |
RT | 19001 | 4x450 ml | 66.00 | Add to Cart |

Nigrosin
(Acid Black 2; Gray R, B, BB; Indulin Black; Nigrosin W, WL
; Silver Gray; Steel Gray)
CAS #8005-03-06
Solubility: 10.0% Water; 0.0% Alcohol; 1.0% Cellosolve; 11.0% Glycol; 0.0%
Xylene
For negative staining of bacteria. With Basic Fuchsin, staining bacteria
spores. Dorner, Le Lait, 6, 8 (1926). Biochem. Biophys. Acta 69,159 (1963).
RT | 19010 | 25g | 36.00 | Add to Cart |

Nile Blue A
(Basic Blue 12, Nile Blue Sulfate)
(C20H20N3O)2SO4 F.W.
732.84 CAS #3625-57-8
Solubility: 6.0% Water; 5.0% Alcohol; 5.0% Cellosolve; 5.0%
Glycol; 0.25% Xylene.
Dye content: approx. 65%
Differentiates melamins and lipofuscins; Used in fat staining.
Lillie, Stain Tech., 31,151 (1956); J. Histochem., 4,377; Z. Anal. Chem.
260, 290 (1972).
For staining bone sections. Cytologia, 11, 261 (1940)
RT | 19020 | 10g | 15.00 | Add to Cart |

Ninhydrin, Crystal, Reagent
(1,2,3-Triketohydrindene Monohydrate)
C9O4·H2O F.W. 178.15 CAS
#485-47-2
RT | 19030 | 25g | 65.00 | Add to Cart |

Nitro Blue Tetrazolium Chloride
(Nitro, BT, p-Nitrotetrazolium Blue; 2, 2´-Di-p-nitrophenyl-5,
5´diphenyl-[3, 3´-dimethoxy-4, 4´-diphenylene]
ditetrazolium chloride)
C40H30Cl2N10O6 F.W.
817.6 CAS 298-83-9
Approx. 98% (TLC).
Contains up to 10% solvent. A substrate for dehydrogenases
and other oxidases
0-5°C | 19035-01 | 100mg | 50.00 | Add to Cart | |
0-5°C | 19035-05 | 1gm | 460.00 | Add to Cart |
Also available in tablet form. Tablet contains 10mg substrate per tablet.
0-5°C | 19035-10 | 10 tablets/pk | 50.00 | Add to Cart | |
0-5°C | 19035-12 | 25 tablets/pk | 120.00 | Add to Cart |

Nitrocellulose
Please see Parlodion Purified Strips.
RT | 19220 | 10g | 180.00 | Add to Cart |

NSA, Nonenyl
Succinic Anhydride
Specially Distilled EM Grade
F.W. 227 CAS #28928-97-4
b.p. 325°C
Viscosity: 102.8 at 25°C
Density: 1.08gm/cm3
An epoxy hardener specially distilled. The special distillation process offers
you much clearer blocks than the standard NSA
RT | 19050 | 450 ml | 26.00 | Add to Cart | |
RT | 19051 | 4x450 ml | 96.00 | Add to Cart |

Orange II
(Acid Orange 7; Acid Orange II, Y or A; Gold Orange; Mandarin
G; Orange A, P or R; Orange Extra; Tropaoelin OOO No.2)
C16H11N2O4SNa F.W.
350.33 CAS #633-96-5
Solubility: 3.0% Water; 0.15% Alcohol; 2.5% Cellosolve; 8.0% Glycol; 0.0%
Xylene
Dye Content: approx. 75%
A general tissue stain with Eosin and Azur-C. French, Stain Tech., 1, 79 (1926). Counterstain for Heidenhain's Hematoxylin in animal histology. A substitute for Orange G if a stronger yellow is desired for contrast. J. Lab. Med., 28, 995 (1943)
RT | 19060 | 25g | 20.00 | Add to Cart |

Orange G, Certified, C.N. #DcO-13
(Acid Orange 10, Wood Orange 2G)
C16H10N2O7S2Na2 F.W..
452.38 CAS #1936-15-8
Solubility: 8.0% Water; 0.22% Alcohol; 1.7% Cellosolve; 3.0% Glycol; 0.0%
Xylene Dye Content: approx. 60%
Kornhauser's Quad stain for most elementary structures of tissues. Stain Tech., 18, 985 (1943) Mallory's tissue stain for connective tissue. Mallory, J. Exper. Med., 5,15 (1900). Used with safranin and tannic acid for showing shoot apex in plant tissue. Stain Tech., 18, 105 (1943).
RT | 19070 | 25g | 34.00 | Add to Cart |