7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt CAS:20324-87-2

Min.Order / FOB Price:Get Latest Price

1 Kilogram	FOB Price: USD 1.0000

1 Kilogram

FOB Price: USD 1.0000

Min.Order :1 Kilogram
Purity: 99%
Payment Terms : L/C,T/T

Keywords

7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt Sodium 6,6'-(1,3-ureylene) bis(1-naphthol-3-sulfonate) CAS:20324-87-2

Quick Details

Appearance:grey white or reddish brown uniform powder
Application:As intermediate for azo dyes such as direct orange S[1] and direct fast scarlet 4BS[2], and etc.
PackAge: 25kgs/drum
ProductionCapacity:2000|Metric Ton|Year
Storage: Preserve in well-closed, light-resistant and airtight containers.
Transportation:By sea or by air

Superiority:

Product name: 7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt；sodium 6,6'-(1,3-ureylene)bis(1,1'-naphthol)-3,3'-sulfonate
Properties: light grey paste. Soluble in water, easily soluble in alkaline solutions.

CAS: 20324-87-2
Molecular formula: C₂₁H₁₆N₂O₉S₂
Molecular weight: 548.45

Details:

Item	Standard		Test Results
Identification	A.H-NMR:Comply with the structure		Complies
	B.LC-MS:Comply with the structure		Complies
	C.The IR spectrum of sample should be identical with that of reference standard;		Complies
	D.HPLC-ESI-MS		Complies
	The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.
Heavy metals	≤10 ppm		<10ppm
Water	≤1.0%		0.10%
Sulphated ash	≤0.5%, determined on 1.0 g.		0.01%
Related substances	Unspecified impurities: for each impurity	≤0.10%	<0.10%
	Total Impurity	≤0.5%	0.18%
Purity	≥99.0%		99.70%
Assay	99.0%~101.0% (anhydrous substance).		99.80%
Storage	Preserve in well-closed, light-resistant and airtight containers.		Complies