214515

Sigma-Aldrich

Chromotrope FB

Dye content 50 %

Synonym(s):
Disodium 4-hydroxy-3-[(4-sulfo-1-naphthalenyl)azo]-1-naphthalenesulfonate, Acid Red 14, Mordant Blue 79
Empirical Formula (Hill Notation):
C20H12N2Na2O7S2
CAS Number:
Molecular Weight:
502.43
Colour Index Number:
14720
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

Quality Level

form

powder

composition

Dye content, 50%

application(s)

hematology: suitable
histology: suitable

mp

275 °C

λmax

383 nm
515 nm (2nd)

ε (extinction coefficient)

≥14500 at 513-519 nm in H2O at 0.03 g/L
≥33000 at 214-220 nm in H2O at 0.03 g/L
≥9000 at 320-326 nm in H2O at 0.03 g/L

Featured Industry

Diagnostic Assay Manufacturing

storage temp.

room temp

SMILES string

[Na+].[Na+].Oc1c(cc(c2ccccc12)S([O-])(=O)=O)\N=N\c3ccc(c4ccccc34)S([O-])(=O)=O

InChI

1S/C20H14N2O7S2.2Na/c23-20-15-8-4-3-7-14(15)19(31(27,28)29)11-17(20)22-21-16-9-10-18(30(24,25)26)13-6-2-1-5-12(13)16;;/h1-11,23H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b22-21+;;

InChI key

YSVBPNGJESBVRM-ZPZFBZIMSA-L

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Related Categories

Application

Chromotrope FB has been used in indirect competitive CLIA (icCLIA) to detect its presence in foods.

Packaging

50 g in glass bottle

Biochem/physiol Actions

Chromotrope FB, also known as acid red 14 (AR14), is a bright orange-red powder. It belongs to the class of monoazides. Chromotrope FB efficiently stains fatty substances and is also used to dye food and medicines.

storage_class_code

11 - Combustible Solids

WGK Germany

WGK 2

Flash Point(F)

437.0 °F

Flash Point(C)

> 225 °C

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

A sensitive chemiluminescent immunoassay to detect Chromotrope FB (Chr FB) in foods
Xu K
Talanta, 164, 341-347 (2017)
Wayne Luallen
Tying the Classic Salmon Fly: A Modern Approach to Traditional Techniques (1997)
Marcel Locquin, Maurice Langeron
Handbook of Microscopy (2013)
G P Ford et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 25(12), 919-925 (1987-12-01)
Groups of 114 (control) or 66 (treated) rats of each sex were fed diets providing 0 (control), 100, 400 or 1200 mg carmoisine/kg body weight/day for 9 wk. Within each group the animals were mated monogamously. Treatment continued uninterrupted until...
Tartrazine induced histamine release in vivo in normal subjects.
R D Murdoch et al.
Journal of the Royal College of Physicians of London, 21(4), 257-261 (1987-10-01)

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