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210633

Sigma-Aldrich

Acid Red 1

Dye content 60 %

Synonym(s):

Amido Naphthol Red G, Azophloxine

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About This Item

Empirical Formula (Hill Notation):
C18H13N3Na2O8S2
CAS Number:
3734-67-6
Molecular Weight:
509.42
Colour Index Number:
18050
Beilstein:
4121767
EC Number:
223-098-9
MDL number:
MFCD00003954
UNSPSC Code:
12171500
PubChem Substance ID:
24852649
NACRES:
NA.47

form

powder

Quality Level

100

composition

Dye content, 60%

λmax

506 nm
532 nm (2nd)

ε (extinction coefficient)

≥17000 at 529-535 nm in water at 0.02 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].CC(=O)Nc1cc(cc2cc(c(\N=N\c3ccccc3)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C18H15N3O8S2.2Na/c1-10(22)19-14-9-13(30(24,25)26)7-11-8-15(31(27,28)29)17(18(23)16(11)14)21-20-12-5-3-2-4-6-12;;/h2-9,23H,1H3,(H,19,22)(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b21-20+;;

InChI key

WXLFIFHRGFOVCD-SERMZQFOSA-L

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Related Categories

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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C N Edwards et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 22(8), 593-597 (1984-08-01)
Urine and faecal extracts from rats given Brown FK or Red 2G orally (800 mg/kg body weight) were investigated for mutagenicity. Extracts were subjected to liquid fluctuation and plate incorporation assays with Salmonella typhimurium strains TA98 and TA100 in the
[Azofloxin--toluidine blue staining].
M Krutsay
Morphologiai es igazsagugyi orvosi szemle, 23(1), 39-40 (1983-01-01)
C N Edwards et al.
Mutation research, 117(1-2), 127-134 (1983-04-01)
The UK-permitted, monoazo food colour Red 2G (C.I. 18050) has previously been shown to induce transition mutations in bacteria when tested with metabolic activation. Whilst this result has now been confirmed, later commercial food-grade batches of the dye have also
M B Hassanin et al.
Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology, 18(5), 291-298 (1989-05-01)
The purpose of the present investigation was to study the histogenesis of the mucoepidermoid carcinoma of the salivary glands. Eleven cases of mucoepidermoid carcinoma of the minor salivary glands and five of the major glands were extensively studied employing immunohistochemical
Qin Wei et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 22(2), 275-279 (2006-03-04)
A simple and sensitive method was conducted for the determination of trace amounts of proteins with benzeneazo-8-acetylamino-1-naphthol-3,6-disulfonic acid sodium salt (azophloxine, AP) using a Rayleigh light-scattering (RLS) technique. At pH 2.60 and in the presence of an emulsifier OP microemulsion
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