Flag of the United StatesAmerican Chemical Independence

1,3-Benzenedisulfonic acid, 4,6-diamino-

CAS 137-50-8

Molecular structure of 137-50-8
US productionNot reported
Import value, 2024$132M
Top sourceChina 27%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292151 · basket

These shares come from HS customs code 292151, which covers 51 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 27%ChinaBE 26%BelgiumKR 17%South KoreaDE 16%GermanyIN 13%India

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$1257.00/gAngene Chemical
CountryChina (registered: Hong Kong)
Pack$1257.00 / 1 g
Purity95%
Vendors7 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

6 more vendors
VendorCountry$/gPackPurity
Aaron Chemicals LLCHong Kong$1390.001 g95%
Combi-Blocks (back-ordered)United States$1425.001 g95%
Ambeed, Inc.United States$1485.001 g95%
AstaTech (2 weeks)United States$1680.001 g95%
A2B Chem LLCUnited States$1784.00250 mg95%
AA BLOCKSUnited States$1984.00250 mg95%

Chemical Identity

CAS137-50-8
PubChem CIDNot recorded
DTXSIDDTXSID9059674
FormulaC6H8N2O6S2
Mol. Weight268.26 g/mol
SMILESNC1=CC(N)=C(C=C1S(O)(=O)=O)S(O)(=O)=O

Data Sources

← Back to Dashboard

Brief citations

1,3-Benzenedisulfonic acid, 4,6-diamino- (CAS 137-50-8) https://chemicalindependence.com/chemical/137-50-8/ EPA TSCA Inventory: CAS 137-50-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292151 for CAS 137-50-8. Reporting year: 2024. https://usatrade.census.gov/