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F8764

Sigma-Aldrich

Fast Red TR Salt hemi(zinc chloride) salt

Synonym(s):

4-Chloro-2-methylbenzenediazonium salt, Azoic Diazo No. 11

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About This Item

Empirical Formula (Hill Notation):
C7H6Cl2N2 · 0.5 ZnCl2
CAS Number:
89453-69-0
Molecular Weight:
257.19
Colour Index Number:
37085
MDL number:
MFCD00074766
UNSPSC Code:
12352204
PubChem Substance ID:
24894975
NACRES:
NA.83
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form

powder

composition

Dye content, >90%

solubility

water: 25 mg/mL, clear, colorless to light yellow

storage temp.

−20°C

SMILES string

[Cl-].[Cl-].Cl[Zn]Cl.Cc1cc(Cl)ccc1[N+]#N.Cc2cc(Cl)ccc2[N+]#N

InChI

1S/2C7H6ClN2.4ClH.Zn/c2*1-5-4-6(8)2-3-7(5)10-9;;;;;/h2*2-4H,1H3;4*1H;/q2*+1;;;;;+2/p-4

InChI key

RIIVFDKBXXMYRL-UHFFFAOYSA-J

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Signal Word

Danger

Hazard Statements

H302,H314,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Corr. 1C

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
091M5300V
091M5300
129K5300
089K5301
019K5309

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The effects of 4-chloro-ortho-toluidine (fast red TB) acute intoxication on rats and guinea pigs. Part III: The effect in vitro on viability of rat thymic and splenic lymphocytes, and on guinea pig granulocyte adherence, chemotaxis and phagocytosis.
A Godlewski et al.
Folia morphologica, 55(4), 259-260 (1996-01-01)
J D Cooper et al.
Clinica chimica acta; international journal of clinical chemistry, 126(3), 297-306 (1982-12-23)
The estimation of acid phosphatase (EC 3.1.3.2) in serum by reaction rate analysis, utilising alpha-naphthyl phosphate as substrate and a diazonium salt (Fast Red TR) for colour development is examined. In the absence of substrate the occurrence of a pseudo
G Lizard et al.
The Histochemical journal, 29(7), 545-554 (1997-07-01)
Human papillomavirus (HPV) infection with potentially oncogenic types 16 or 18 is common in genital lesions especially in uterine carcinomas. In such lesions, in situ hybridization with non-radioactive probes is a powerful tool for the histopathologist to detect and type
M D Green et al.
Tropical medicine & international health : TM & IH, 6(12), 980-982 (2001-12-12)
The recent and widespread appearance of counterfeit antimalarial tablets in South-east Asia prompted the search for simple field assays to identify genuine drugs. In a recently described colorimetric assay for artesunate, Fast red TR salt reacted with an alkali-decomposition product
E J Speel et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 40(9), 1299-1308 (1992-09-01)
We have used naphthol-ASMX-phosphate and Fast Red TR in combination with alkaline phosphatase (APase) to produce fluorescent precipitated reaction products in a non-radioactive in situ hybridization (ISH) method. To obtain optimal and discrete localization of the strongly red fluorescent ISH
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