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SULFANILIC ACID, ACS Reagent, crystal, (4-Aminobenzenesulfonic Acid), H₂NC₆H₄SO₃H

CAS Number
121-57-3
Molecular Formula
H₂NC₆H₄SO₃H
Product Code
15646
Chemical Name:
4-Aminobenzenesulfonic Acid
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Traceable, Tested, and Safe
Chemical Name 4-Aminobenzenesulfonic Acid
Molecular Formula H₂NC₆H₄SO₃H
Synonyms Sulfanilic acid
Physical and Chemical Properties IRRITANT

Shipping Information

Special Handling Required
This product requires special packaging and shipping due to its toxic nature.
  • Ships via ground transportation only
  • Proper hazardous material labeling included
  • Adult signature required upon delivery
  • Cannot ship to P.O. boxes
International Shipping
We ship to most countries worldwide, subject to applicable regulations and carrier availability. Additional documentation or permits may be required depending on the destination and product classification. Certain products may have route, carrier, or mode restrictions due to their hazardous nature. Specific shipping options and requirements will be confirmed at the time of quotation or order.

Frequently Asked Questions

1. How long will it take to receive a quote?

Most quotes are provided within one week. More complex requests — including custom materials, specialty specifications, or large-volume inquiries — may require one or more weeks for full review and pricing.

Noah Chemicals can offer payment terms to approved customers through our credit application process. New customers typically begin on prepaid terms until we establish a transaction history and credit profile. Once approved, formal payment terms can be extended based on credit review.

We accept company check, wire transfer, and major credit cards. We do not ship COD and cannot accept personal checks.

Noah Chemicals standard Incoterm is EXW San Antonio, Texas, unless otherwise specified.

Noah Chemicals will ship your order according to any special shipping instructions provided on your purchase order. Once your PO is received, your Account Manager will pass it to our Operations Team. An Operations Representative will then issue an official Order Confirmation and begin processing your order.

If your account requires prepayment, we will also send a Proforma Invoice along with the Order Confirmation. Processing will begin once payment is received. Customers on established payment terms will move directly into order processing.

Once your order ships, your Operations Representative will provide shipment details and tracking information. If you have any questions before or after shipment, please contact the Operations Representative listed on your Order Confirmation or Assigned Account Manager.

Yes. We support custom sourcing, custom blends, tight-spec materials, and specialty packaging requirements depending on feasibility and regulatory constraints.