MolGraph
ProductsChemical familiesDocumentationAbout
MolGraph

Research chemical sourcing and molecular building block RFQ workflows.

MolGraph is operated by Tessorix Inc.

support@molgraph.com

Products are intended for laboratory research use only and are not for human or veterinary use.

Compounds

  • Compound catalog
  • In-stock with prices
  • Chemical families & applications
  • Catalog data snapshot
  • Patent compound sourcing
  • Request Quote

Categories

  • Protected amines
  • Boronic acids
  • Fluorinated building blocks
  • Heterocycles
  • Pharmaceutical intermediates
  • Custom synthesis

Company

  • About
  • Contact

Documentation

  • Quality Documentation
  • SDS Disclaimer

Compliance

  • Compliance

Legal

  • Returns & Refunds
  • Terms
  • Privacy

Copyright © 2026 MolGraph. All Rights Reserved.

Home/Compounds/CAS 134-47-4/Safety Reference
CAS 134-47-4Preliminary Safety ReferenceNot a supplier-issued SDSSupplier SDS by request

CAS 134-47-4 Safety Reference and Supplier SDS Request

4,4'-Dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid)

Back to CAS detail

Preliminary reference disclaimer

This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.

Documentation status

Preliminary safety reference

Available

Supplier-issued SDS

Available by request

COA

Available by RFQ / lot confirmation

Transport classification

Requires shipment review

Identity

CAS Number

134-47-4

Chemical name

4,4'-Dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid)

Molecular formula

C21H16N2O9S2

Molecular weight

504.5 g/mol

Synonyms

7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid]; 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis(4-hydroxy-; 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-; 7,7'-(Carbonyldiimino)bis(4-hydroxy-2-naphthalenesulfonic acid); 7,7'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid); J Acid urea; Urea J Acid; Carbonyl J Acid; AMI-1 free acid; I Acid Urea; AMI-1 (free acid); 6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid)

InChIKey

PCGISRHGYLRXSR-UHFFFAOYSA-N

PubChem CID

67254

Hazard / GHS Reference

Signal word

Warning

Catalog reference cue; confirm supplier documentation before use.

Hazard statements

H302, H315, H319, H335

Catalog reference cue; confirm supplier documentation before use.

Handling & PPE

  • Keep container tightly closed and dry. Store in a well-ventilated place. Recommended storage conditions: Sealed and dry, room temperature
  • If exposed to a harmful environment, use a P95 (US) or P1 (EU UK 143) particulate respirator. For higher level protection, use an OV/AG/P99 (US) or ABEK-P2 (EU UK 143) gas filter. Respirators must be tested and approved by government standards such as NIOSH (US) or CEN (EU).
  • Waste product. Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion and washing capabilities if soluble or mixed with flammable solvents. Burn contaminated packaging. Contaminated packaging is to be disposed of as unused product.

First Aid / Accidental Release

  • Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
  • If inhaled, move the person to fresh air. If breathing stops, perform artificial respiration. Consult a physician.
  • Rinse with plenty of water for at least 15 minutes and consult a physician.
  • Wash with soap and plenty of water. Consult a physician.
  • Do not generate dust when collecting and disposing. Sweep and shovel up. Place in a suitable closed container for disposal.
  • Use personal protective equipment and emergency procedures. Avoid dust generation. Avoid inhaling vapors, mists or gases. Ensure adequate ventilation. Evacuate personnel to a safe area. Avoid inhaling dust. See
  • Do not allow the product to enter drains.
  • Waste product. Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion and washing capabilities if soluble or mixed with flammable solvents. Burn contaminated packaging. Contaminated packaging is to be disposed of as unused product.

Firefighting / Stability

  • If necessary, wear a self-contained breathing apparatus for firefighting.
  • Reactivity and reaction
  • Carbon monoxide, carbon dioxide, nitrogen oxides, sulfur oxides

Physical and Chemical Reference

Appearance

Dry Powder

Catalog reference value; verify against supplier SDS before use.

XLogP

1.8

Catalog reference value; verify against supplier SDS before use.

Transport / Shipment Review

Shipment review

Shipment details require review before fulfillment.

Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.

  • Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.

Need supplier documentation?

Request through MolGraph:

  • Supplier-issued SDS
  • COA
  • Purity and pack size confirmation
  • Availability and lead time review
  • Shipment documentation review

Catalog-Specific Reference Cues

  • 4,4'-Dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid) (CAS 134-47-4) is listed in the Materials Science portfolio, with molecular formula C21H16N2O9S2 and molecular weight 504.50 g/mol.
  • Intended for materials chemistry research and formulation screening workflows; structure-derived tags include nitrogen-containing heterocycle.

Related catalog entries

Related public CAS links are not available for this reference page.

MolGraph Preliminary Safety Reference - Not a supplier-issued SDS. This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.