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Chromotropic acid

Chromotropic acid structure

CAS No:
148-25-4
Formula:
C10H8O8S2
Chemical Name:
Chromotropic acid
Synonyms:
2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-;4,5-Dihydroxy-2,7-naphthalenedisulfonic acid;C.I. 16655;Chromatropic acid;Chromotropic acid;1,8-Dihydroxynaphthalene-3,6-disulfonic acid;911126-86-8;1081781-15-8
Categories:
Pharmaceutical Intermediates > Bulk Drug Intermediates

Description

Chromotropic acid is a naphthalenesulfonic acid that is naphthalene-2,7-disulfonic acid substituted by hydroxy groups at positions 4 and 5. It has a role as an indicator. It is a naphthalenesulfonic acid and a member of naphthalenediols.

Chromotropic acid Basic Attributes

Molecular Weight：

320.29600

Exact Mass：

320.30

EC Number：

205-712-7

UNII：

S596OD720M

DSSTox ID：

DTXSID6059732

HScode：

2908999090

Characteristics

PSA：

165.96000

XLogP3：

0.5

Density：

1.929 g/cm3

Refractive Index：

1.756

Safety Information

Packing level：

III

Hazard category：

6.1

Transport codes：

UN3288

wgk germany：

hazard class code：

R22

safety instructions：

S22; S24/25

RTECS Number：

TE6130000

Marks：

Precautionary statement(s)：

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

GHS Classification：

|Warning|H315 (97.5%): 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 72 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

4,5-DHN-2,7-DSA

Chromotropic acid Use and Manufacturing

Uses

Analytical reagent.

Polymeric colorants

Production

< 25,000 lb

Manufacturing Info：

All other basic organic chemical manufacturing|2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-: ACTIVE

Computed Properties

Molecular Weight:320.3
XLogP3:0.5
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:8
Rotatable Bond Count:2
Exact Mass:319.96605956
Monoisotopic Mass:319.96605956
Topological Polar Surface Area:166
Heavy Atom Count:20
Complexity:507
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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