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CAS 2 records

CAS 6358-69-6

CAS 6358-69-6 matches 2 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 6358-69-6
CAS 6358-69-6PubChem CID 61388

Pyranine

Pyranine is an organic sodium salt. It has a role as a fluorochrome. It contains a pyranine(3-). It derives from a hydride of a pyrene. — ChEBI

IUPAC name
trisodium;8-hydroxypyrene-1,3,6-trisulfonate
Molecular formula
C16H7Na3O10S3
Molecular weight
524.4 g/mol
Exact mass
523.88944278 Da
Topological polar surface area
217.0 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
10
Covalent units
4
Defined stereocentres
0

Also known as

Solvent green 7Pyrene 1Green 8Japan Green 204Japan Green No. 20411389 GreenD&C Green 8Pyranine 120
16 more reported names
Green 204Green No. 204Trisodium 1-hydroxy-3,6,8-pyrenetrisulfonate8-Hydroxypyrene-1,3,6-trisulfonic acid sodium saltRefChem:870405D.C. Green No. 8Sodium 8-hydroxypyrene-1,3,6-trisulfonateHPTSD & C Green no. 8D&C Green No. 8C.I. Solvent Green 71,3,6-Pyrenetrisulfonic acid, 8-hydroxy-, trisodium salt8-HYDROXY-1,3,6-PYRENETRISULFONIC ACID TRISODIUM SALT8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium saltCI 59040C.I. 59040
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 6358-69-6

2 total
Annex
IV
Entry
87

CI 59040

Trisodium 8-hydroxypyrene-1,3,6-trisulphonate
EC
228-783-6
Max concentration

How CAS 6358-69-6 is used on this site

CAS 6358-69-6 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 2 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 6358-69-6 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.

Frequently asked questions

A substance identified by CAS 6358-69-6 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

The INCI Checker accepts ingredient names, CAS numbers and EC numbers. Check this CAS number directly, then verify the result against supplier specification sheets and every linked annex condition.
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