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Merck
CN

210633

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
NACRES:
NA.47
PubChem Substance ID:
24852649
UNSPSC Code:
12171500
Colour Index Number:
18050
EC Number:
223-098-9
MDL number:
MFCD00003954
Beilstein/REAXYS Number:
4121767

Key Documents

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Product Name

Acid Red 1, Dye content 60 %

InChI key

WXLFIFHRGFOVCD-SERMZQFOSA-L

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+;;

SMILES string

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

form

powder

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

Quality Level

100

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Related Categories

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBP6116
SHBN7444
MKCK2450
MKCG8575
MKCF5579

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[Azofloxin--toluidine blue staining].
M Krutsay
Morphologiai es igazsagugyi orvosi szemle, 23(1), 39-40 (1983-01-01)
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
Histochemical detection of myoepithelial cells in pleomorphic adenoma with azophloxine and amidoblack.
A G Triantafyllou
Journal of oral medicine, 41(3), 184-188 (1986-07-01)
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
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
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