Dye and Metabolite Reference Materials and Research Chemicals
Dyes are widely used in a variety of industries - such as textiles, cosmetics, printing, pharmaceuticals and food. They are also used in research for staining and visualisation purposes. However, improper disposal or release in the manufacturing process can lead to environmental contamination and damage ecosystems and health.
At LGC we have a vast variety of dye and metabolite reference standards to support environmental research and regulatory testing. Browse our entire range below.
Environmental Dyes and metabolites accreditation
Please see individual products for specific accreditation status See our accreditations
ISO 17034
ISO/IEC 17025
ISO 9001
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![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh1f%2Fh9c%2F10773752315934%2F16142.png)
- Product Code: DRE-C12972339
- CAS Number: 12236-29-2
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: Disperse Yellow 39
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fhb3%2Fha0%2F10422028206110%2F14616.png)
- Product Code: DRE-C14680010
- CAS Number: 1258668-21-1
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: Malachite green D5 picrate
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fhb6%2Fh51%2F10561709146142%2F16120.png)
- Product Code: DRE-C15506000
- CAS Number: 220658-76-4
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: New Red
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh43%2Fh8e%2F10565394104350%2F13632.png)
- Product Code: DRE-C12972120
- CAS Number: 13301-61-6
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: Disperse Orange 37
ISO 17034
- Product Code: DRE-C12972013
- CAS Number: 2475-46-9
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2009_1223
- Analytes: Disperse Blue 3
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh49%2Fh33%2F10515898269726%2F12378.png)
- Product Code: DRE-C17048000
- CAS Number: 2783-94-0
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2008_1333
- Analytes: Sunset Yellow (E110)
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh71%2Fh5a%2F10364431695902%2F13654.png)
- Product Code: DRE-C12972019
- CAS Number: 3860-63-7
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: Disperse Blue 26 (Technical product, mixture of congeners)
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fhd9%2Fhda%2F10561706623006%2F16121.png)
- Product Code: DRE-C15492000
- CAS Number: 118685-33-9
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: Navy Blue 018112
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh25%2Fhc9%2F10564182802462%2F13309.png)
- Product Code: DRE-C13205000
- CAS Number: 16423-68-0
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2008_1333
- Analytes: Erythrosine B disodium salt (E127)
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh74%2Fh3a%2F10557635100702%2F12903.png)
- Product Code: DRE-C12965000
- CAS Number: 1937-37-7
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2009_1223, REACH SVHC
- Analytes: Direct Black 38
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fheb%2Fhf0%2F10700249530398%2F11847.png)
- Product Code: DRE-C14629500
- CAS Number: 129-73-7
- Brand: Dr. Ehrenstorfer
- Product type: Metabolite
- Product Format: Neat
- Regulatory Method: fda CFR (US) BAN, EU_2019_1871
- Analytes: Leucomalachite green
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fhb2%2Fh93%2F10636534841374%2F11819.png)
- Product Code: DRE-C10648000
- CAS Number: 101-77-9
- Brand: Dr. Ehrenstorfer
- Product type: Metabolite
- Product Format: Neat
- Regulatory Method: REACH SVHC, EU_2009_1223
- Analytes: Bis-(4-aminophenyl)methane
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh42%2Fh53%2F10561647869982%2F11204.png)
- Product Code: DRE-C12972010
- CAS Number: 2475-45-8
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2009_1223
- Analytes: Disperse Blue 1
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh8e%2Fh18%2F10747831549982%2F12492.png)
- Product Code: DRE-C12377900
- CAS Number: 91-94-1
- Brand: Dr. Ehrenstorfer
- Product type: Metabolite
- Product Format: Neat
- Regulatory Method: EU_2009_1223
- Analytes: 3,3'-Dichlorobenzidine
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fhea%2Fh36%2F10557986406430%2F11486.png)
- Product Code: DRE-C16284000
- CAS Number: 2611-82-7
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2008_1333
- Analytes: Ponceau 4RC (E124)
ISO/IEC 17025
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh1c%2Fhf7%2F10569668755486%2F11795.png)
- Product Code: DRE-CA15081900
- CAS Number: 615-05-4
- Brand: Dr. Ehrenstorfer
- Product type: Metabolite
- Product Format: Neat
- Regulatory Method: EU_2009_1223
- Analytes: 4-Methoxy-1,3-phenylenediamine (2,4-Diaminoanisole)
ISO 17034
Short shelf life. Check that the expiry date is fit for your purposes.
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fhb0%2Fhd2%2F10558190354462%2F13370.png)
- Product Code: DRE-C17138000
- CAS Number: 1934-21-0
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Regulatory Method: EU_2008_1333
- Analytes: Tartrazine (E102)
ISO 17034
![](https://assets.lgcstandards.com/sys-master%2Fimages%2Fh58%2Fh7e%2F10557748641822%2F14484.png)
- Product Code: DRE-C12972030
- CAS Number: 68516-81-4
- Brand: Dr. Ehrenstorfer
- Product Format: Neat
- Analytes: Disperse Blue 106
ISO 17034
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