1.01340
Congo red (C.I. 22120)
pH indicator, Reag. Ph Eur
Synonym(s):
Congo red (C.I. 22120)
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 g | Please contact Customer Service for Availability | PLN 276.00 |
About This Item
Product Name
Congo red (C.I. 22120), indicator Reag. Ph Eur
agency
reag. Ph. Eur.
Quality Segment
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
SMILES string
[Na+].[Na+].[S](=O)(=O)([O-])c1c2c(c(c(c1)N=Nc3ccc(cc3)c4ccc(cc4)N=Nc5c(c6c(c(c5)[S](=O)(=O)[O-])cccc6)N)N)cccc2
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
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
1 of 1
This Item | |||
|---|---|---|---|
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. room temp | storage temp. 2-30°C |
| loss ≤5% loss on drying, 110°C | loss ≤18% loss on drying, 110°C | loss - | loss ≤5% loss on drying, 110°C |
| mp >360 °C | mp - | mp >360 °C (lit.) | mp 178-182 °C |
| pH 6.7 (20 °C, 10 g/L in H2O) | pH 3.1 (20 °C, 10 g/L in H2O) | pH - | pH - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form powder | form solid | form powder | form powder, solid |
signalword
Danger
hcodes
Hazard Classifications
Carc. 1B - Repr. 2
Storage Class
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.
573-58-0
573-58-0
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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