Aniline-2,4-disulfonic acid
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Aniline-2,4-disulfonic acid
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CAS No:
137-51-9
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Formula:
C6H7NO6S2
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Chemical Name:
Aniline-2,4-disulfonic acid
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Synonyms:
1,3-Benzenedisulfonic acid,4-amino-;m-Benzenedisulfonic acid,4-amino-;4-Amino-1,3-benzenedisulfonic acid;4-Amino-m-benzenedisulfonic acid;Aniline-2,4-disulfonic acid;1-Amino-2,4-benzenedisulfonic acid;2-Aminobenzene-1,5-disulfonic acid;6-Amino-1,3-benzenedisulfonic acid
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CAS No:
Aniline-2,4-disulfonic acid Basic Attributes
253.25
253.25
205-299-3
OBE9XQ0O96
DTXSID4059675
2921499090
Safety Information
Ⅲ
6.1
3261
8
S26-S37/39
Xn
P280, P305+P351+P338, P310
H318
|Danger|H318 (70.73%): Causes serious eye damage [Danger Serious eye damage/eye irritation]|P264, P280, P305+P351+P338, P310, and P337+P313|Aggregated GHS information provided by 123 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Aniline-2,4-disulfonic acid Use and Manufacturing
It is derived from sulfanilic acid by sulfonation of fuming sulfuric acid. Put 20% fuming sulfuric acid in the sulfonation pot, slowly add dry p-aminobenzene sulfonic acid under stirring. The temperature is controlled at 50°C during feeding. After feeding, stir for 20 minutes, then heat to 60°C, keep it for 1 hour, and then rise to Incubate at 80°C for 1 hour, then rise to 100°C, hold for 1 hour, and finally rise to 128°C, hold for 5 hours, and sample for verification (take 2ml of the sample, dilute it in 40ml of distilled water, shake to make it completely dissolved, and obtain a clear solution). Stir at 128°C for 3h, then lower the temperature to 75°C to discharge, the yield is 98%.
Can be used as dye intermediate.
1,3-Benzenedisulfonic acid, 4-amino-: ACTIVE
Computed Properties
Molecular Weight:253.3
XLogP3:-1.6
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:7
Rotatable Bond Count:2
Exact Mass:252.97147929
Monoisotopic Mass:252.97147929
Topological Polar Surface Area:152
Heavy Atom Count:15
Complexity:416
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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