1.01340
Congo red (C.I. 22120)
indicator Reag. Ph Eur
Synonym(s):
Congo red (C.I. 22120)
About This Item
Recommended Products
Agency
reag. Ph. Eur.
Quality Level
vapor pressure
<1 Pa
form
powder
potency
143 mg/kg LD50, oral (Rat)
loss
≤5% loss on drying, 110°C
color
almost clear to slightly turbid red, 1.0g/L;water
red-brown
pH
6.7 (20 °C, 10 g/L in H2O)
mp
>360 °C
bulk density
600‑700 kg/m3
storage temp.
2-30°C
InChI
1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2
InChI key
IQFVPQOLBLOTPF-UHFFFAOYSA-L
Related Categories
Analysis Note
Appearance of solution (1.0 gr/l; water): Almost clear to slightly turbid, red
Transition range: pH 3.0 - pH 5.2violet - orange-red
Loss on drying (110 °C): ≤ 5 %
Sensitivity test: passes test
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Carc. 1B - Repr. 2
Storage Class Code
6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 3
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
EU REACH SVHC Candidate List
EU REACH Annex XVII (Restriction List)
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’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Customers Also Viewed
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service