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H acid

H acid structure

CAS No:
90-20-0
Formula:
C10H9NO7S2
Chemical Name:
H acid
Synonyms:
2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-;1-Naphthol-3,6-disulfonic acid,8-amino-;4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid;C.I. 35570;1-Amino-8-hydroxy-3,6-disulfonaphthalene;1-Amino-8-hydroxynaphthalene-3,6-disulfonic acid;5-Amino-4-naphthol-2,7-disulfonic acid;8-Amino-1-naphthol-3,6-disulfonic acid;H acid;1-Amino-8-naphthyl-3,6-disulfonic acid;8-Amino-1-hydroxy-3,6-naphthalenedisulfonic acid;1-Hydroxy-8-amino-3,6-naphthalenedisulfonic acid;1-Naphthol-8-amino-3,6-disulfonic acid;3,6-Disulfo-8-hydroxy-1-naphthylamine;1-Hydroxy-8-amino-3,6-disulfonaphthalene;1-Amino-8-naphthol-3,6-disulfonic acid;5-Amino-4-hydroxy-2,7-naphthalenedisulfonic acid;3,6-Disulfo-1-amino-8-naphthol;1-Amino-3,6-disulfo-8-naphthol;Sulfonphthol;NSC 190492;1-Hydroxy-3,6-disulfo-8-aminonaphthalene;8-Hydroxy-3,6-disulfo-1-naphthylamine;1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid;94475-69-1
Categories:
Organic Chemistry > Amides

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H acid Basic Attributes

Molecular Weight：

319.31

Exact Mass：

319.31

EC Number：

201-975-7

UNII：

4WUM31ES4U

NSC Number：

190492

DSSTox ID：

DTXSID0046981

HScode：

2922299090

Characteristics

PSA：

171.75000

XLogP3：

-3.45

Appearance：

White to gray-yellow powder

Density：

1.9±0.1 g/cm3

Melting Point：

>300 °C(lit.)

Refractive Index：

1.764

Toxicity：

Reference value: Oral-rat LD50: 6210 mg/kg

Flammability characteristics：

Flammable; burning produces toxic nitrogen oxides and sulfur oxide fumes

Safety Information

wgk germany：

hazard class code：

36/37/38

safety instructions：

26-36

Marks：

Storage features：

Warehouse ventilated, low temperature and dry

Precautionary statement(s)：

P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362

Hazard Statements：

H315

GHS Classification：

|Danger|H314 (90.7%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]|P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, and P501|Aggregated GHS information provided by 45 companies from 4 notifications to the ECHA C&L Inventory.|Not Classified|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 38 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Toxicity

Toxicity class：

nontoxic

Drug Information

MeSH Entry Terms：

4-amino-5-hydroxynaphthalene-2,7-disulfonic acid

H acid Use and Manufacturing

Uses

It is an important intermediate for the manufacture of azo dyes

Manufacturing Info：

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-: ACTIVE

Computed Properties

Molecular Weight:319.3
XLogP3:0.2
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:8
Rotatable Bond Count:2
Exact Mass:318.98204397
Monoisotopic Mass:318.98204397
Topological Polar Surface Area:172
Heavy Atom Count:20
Complexity:561
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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