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Sigma-Aldrich

4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid monosodium salt

for synthesis

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Synonym(s):
4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid monosodium salt, 1-Amino-8-naphthol-3,6-disulfonic acid monosodium salt
Empirical Formula (Hill Notation):
C10H8NNaO7S2
CAS Number:
Molecular Weight:
341.29
EC Index Number:
226-736-4

Quality Level

form

powder

autoignition temp.

>400 °C

mp

>380 °C

bulk density

550 kg/m3

storage temp.

2-30°C

InChI

1S/C10H9NO7S2.Na/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8;/h1-4,12H,11H2,(H,13,14,15)(H,16,17,18);/q;+1/p-1

InChI key

QPILZZVXGUNELN-UHFFFAOYSA-M

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This Item
14279439896911635
mp

>380 °C

mp

-

mp

290 °C (dec.) (lit.)

mp

-

storage temp.

2-30°C

storage temp.

-

storage temp.

room temp

storage temp.

-

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

-

autoignition temp.

>400 °C

autoignition temp.

-

autoignition temp.

-

autoignition temp.

-

bulk density

550 kg/m3

bulk density

-

bulk density

-

bulk density

-

Analysis Note

Assay (acidimetric): ≥ 85.0 %
Water (K. F.): 8.0 - 12.0 %
Identity (IR): passes test

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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