H acid

HCID 7009CAS 90-20-0

Basic information

Standard SMILES
Nc1cc(S(=O)(=O)O)cc2cc(S(=O)(=O)O)cc(O)c12
InChIKey
APRRQJCCBSJQOQ-UHFFFAOYSA-N
Molecular formula
C10H9NO7S2
Average molar mass
319.3 g/mol
Monoisotopic mass
318.98204397

Names & identifiers

Preferred name
H acid
IUPAC
4-amino-5-hydroxynaphthalene-2,7-disulfonic acid
English name
2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts
Molecular weight
0

Names & synonyms

90-20-04-Amino-5-hydroxy-2,7-naphthalenedisulfonic acidH acid2,7-NAPHTHALENEDISULFONIC ACID, 4-AMINO-5-HYDROXY-1-Amino-8-naphthol-3,6-disulfonic acid1-Naphthol-8-amino-3,6-disulfonic acidC.I. 355704WUM31ES4USULFONPHTHOLNSC-190492RefChem:4350271-amino-8-nephthol-2, 2'-disulfonic acid
Show more names
2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-(4-aminophenyl)amino-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts
201-975-74-amino-5-hydroxynaphthalene-2,7-disulfonic acidH-Acid1-Amino-8-hydroxynaphthalene-3,6-disulphonic acidKyselina HMFCD000357284-amino-5-hydroxy-naphthalene-2,7-disulfonic acidCHEMBL60494

Database identifiers

CAS
90-20-0、90431-97-3、90432-00-1、98072-99-2
PubChem CID
7009
DTXSID
DTXSID0046981
ChEMBL
CHEMBL60494
UNII
4WUM31ES4U
EC Number
201-975-7、291-627-0、291-630-7、308-556-9
Nikkaji
J3.554H

Properties

Computed structural properties

XLogP
0.2
Topological polar surface area
172 Ų
Hydrogen bond donors
4
Hydrogen bond acceptors
8
Rotatable bonds
2
Heavy atoms
20

Experimental & physicochemical properties

Physical DescriptionDry Powder

Safety & regulation

GHS classification

GHS Classification · 6 items

This chemical does not meet GHS hazard criteria for 1.3% (2 of 150) of reports.

Danger

H302+H332 (69.3%): Harmful if swallowed or if inhaled [Warning Acute toxicity, oral; acute toxicity, inhalation];H302 (69.3%): Harmful if swallowed [Warning Acute toxicity, oral];H314 (26.7%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation];H315 (72%): Causes skin irritation [Warning Skin corrosion/irritation];H319 (72%): Causes serious eye irritation [Warning Serious eye damage/eye irritation];H332 (69.3%): Harmful if inhaled [Warning Acute toxicity, inhalation];H335 (72%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P260, P261, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 150 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Reported as not meeting GHS hazard criteria per 2 of 150 reports by companies.;There are 4 notifications provided by 148 of 150 reports by companies with hazard statement code(s).;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Hazard information

Regulatory Information · 5 items

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

Chemical: 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 13-03-2013 https://echa.europa.eu/registration-dossier/-/registered-dossier/11150

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-(4-aminophenyl)amino-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

Other Safety Information · 1 item

IMAP assessments - 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts: Human health tier I assessment

Hazard Classes and CategoriesAcute Tox. 4 (69.3%);Skin Corr. 1B (26.7%);Skin Irrit. 2 (72%);Eye Irrit. 2 (72%);Acute Tox. 4 (69.3%);STOT SE 3 (72%)

Regulatory information

Regulatory Information · 5 items

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

Chemical: 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 13-03-2013 https://echa.europa.eu/registration-dossier/-/registered-dossier/11150

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-(4-aminophenyl)amino-5-nitrobenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol, potassium sodium salts: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

Chemistry & industry

Uses & manufacturing

U.S. Production2023: 67,929 lb;2022: 114,088 lb;2021: 146,824 lb;2020: 181,550 lb
General Manufacturing Information2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-: ACTIVE

Related reactions

18 records

Linked notes

Loading…