Compound record

Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo] -5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate (C.I. Direct Black 38)

Also known as EM 38

1937-37-7 · candidate list substance

EM 38 SVHC Candidate ListEU monitoring Direct Black 38C.I. Direct Black 38Chlorazol Black E

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 1937-37-7

Formula C34H25N9Na2O7S2

Molecular weight 781.7 g/mol

InChIKey XRPLBRIHZGVJIC-UHFFFAOYSA-L

Current EU status

Regulatory snapshot for Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo] -5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate (C.I. Direct Black 38)

Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo] -5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate (C.I. Direct Black 38) is currently surfaced as candidate list substance in the EU.

The current imported view anchors this substance in CandidateList. The live rationale focuses on Carcinogenic (Article 57a), and this page is designed for fast status checks before deeper source review.

Searchers usually land here for the chemical name, CAS number, abbreviation EM 38, and the question of whether the substance is tied to SVHC, REACH, POPs, or SCIP-style compliance work.

Candidate List substancecurrent statuslatest imported framework state

16 Dec 2013latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

CAS: 1937-37-7
EC: 217-710-3
Formula: C34H25N9Na2O7S2
Molecular weight: 781.7 g/mol
Primary class: candidate list substance
Synonym count: 193

Search-friendly summary

Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo] -5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate (C.I. Direct Black 38) (EM 38) , CAS 1937-37-7, is tracked here as a monitored substance in the candidate list substance class.

Common names and aliases

Direct Black 38C.I. Direct Black 38Chlorazol Black EChlorazol blackC.I. 30235CI DIRECT BLACK 38

What to do next

Use the right route for status, SCIP, and source questions

Status

Current legal state, Candidate List signals, and source-backed rationale

Go here for the framework answer block, listed dates, reasons, and the imported basis for the current EU status.

Obligations

Who needs to act, what to check, and whether SCIP matters

Use this when the question is operational: SCIP, article communication, threshold review, portfolio screening, or substitute work.

Why monitored

Why this substance is monitored in the EU

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Alternatives

Potential substitutes and nearby molecules

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Changes

What changed over time

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Sources

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Action prompts

Fast compliance and screening routes

Article duties

Check Candidate List threshold and SCIP relevance

Use this when the substance may sit in articles, components, or imported goods and you need to confirm communication and SCIP workflows.

Source check

Verify the legal source before repeating the claim

Every summary should point back to the underlying authority surface. Use the source route when the exact notice, registry entry, or legal text matters.