– TCO Certified Accepted Substance List

Safer alternatives to hazardous substances listed here

Hazardous substances in IT products are a risk to human health and the environment. Criteria in TCO Certified aim to reduce or eliminate the use of these substances, drive transparency and develop pathways to safer alternatives.

Simply banning substances isn’t enough. We need better information about the substances that are being used to replace them. With TCO Certified, a chemical is considered a high risk until it is proven to be otherwise. GreenScreen® for Safer Chemicals is used to identify a pathway to safer alternatives. Only plasticizers, flame retardants and process chemicals that achieve a benchmark score of 2, 3 or 4 by a Licensed GreenScreen Profiler are added to TCO Certified Accepted Substance List and may be used in the products and manufacture of certified products.

TCO Certified Accepted Substance List

Substances listed by CASRN or Trade name are approved for use in the products and manufacture of certified products. The list is dynamic and the substances may be reassessed in light of new scientific findings. You can filter the list by clicking on the purple header bar, or by using the search field to the right.

Assessments are valid for up to five years. To remain listed, a substance must be re-assessed before the expiry date (shown under ‘Approaching expiration date’), otherwise the substance will be moved to the potential candidate list and can no longer be used for certified products. If you want a substance to be assessed or re-assessed, please contact us for cost-sharing alternatives.

Substance name/Trade nameCAS numberTypeBenchmarkAssessed
Approaching
expiration date
ProfilerCommentsInformation update
Triphenyl Phosphate115-86-6FR2Jul, 2019Jul, 2024Rosenblum2Ongoing assessment
Aluminum Hydroxide21645-51-2FR2Apr, 2019Apr, 2024Rosenblum2Ongoing assessment
Substituted Amine Phosphate mixture66034-17-1FR2Apr, 2019Apr, 2024Rosenblum2
Siloxanes and silicones, di-Me, di-Ph,
polymers with Ph silsesquioxanes
68648-59-9FR2Dec, 2023Toxservices
Red Phosphorus7723-14-0FR2Apr, 2019Apr, 2024Rosenblum2
Magnesium Hydroxide1309-42-8FR3Apr, 2019Apr, 2024Rosenblum2Ongoing assessment
Aromatic polyphosphate and
Bisphenol A Diphophate
181028-79-5,
5945-33-5
FR, PL3Mar, 2024Toxservices1*
Diisooctyl adipate1330-86-5PL2May, 2019May, 2024Scivera
Epoxidized soybean oil (ESBO)8013-07-8PL3Feb, 2024Toxservices
Calcium stearate1592-23-0S3Oct, 2023Toxservices
Tetrakis(methylene(3,5-di-tert-butyl-4-
hydroxycinnamate))methane
6683-19-8S2Oct, 2023Toxservices
Zinc stearate557-05-1S2Oct, 2023Toxservices
Magnesium aluminum hydroxide carbonate11097-59-9S2Oct, 2023Toxservices
Pentaerythritol115-77-5S2Oct, 2023Toxservices
Stearic Acid57-11-4S2Oct, 2023Toxservices
Barium distearate6865-35-6S2Oct, 2023Toxservices
Resin acids and rosin acids, calcium zinc salts68334-35-0S2Oct, 2023Toxservices
2-(2-Butoxyethoxy) ethanol 112-34-5CI3Jan, 2021Toxservices
2-Ethanolamine141-43-5CI2Jan, 2021Toxservices
Acetone 67-64-1CI2Jan, 2021Toxservices
Butyl acetate 123-86-4CI2Jan, 2021Toxservices
Cyclohexane110-82-7CI2Jan, 2021Toxservices
Diethylene glycol dibutyl ether112-73-2CI3Jan, 2021Toxservices
Diethylene glycol dibutyl ether112-36-7CI2Jan, 2021Toxservices
Ethyl alcohol64-17-5CI2Jan, 2021Toxservices
Ethylene glycol mono-n-butyl ether111-76-2CI2Jan, 2021Toxservices
HMW PEGs25322-68-3CI3Jan, 2021Toxservices
Isopropanol67-63-0CI2Jan, 2021Toxservices
n-Heptane142-82-5CI2Jan, 2021Toxservices
Potassium Hydroxide 1310-58-3CI2Jan, 2021Toxservices
Triethanolamine 102-71-6CI2Jan, 2021Toxservices
Water (Purified)7732-18-5CINA
1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy)ethane406-78-0 CI2Nov, 2021Toxservices
Propanol71-23-8CI2Oct, 2022Toxservices
n-Butanol 71-36-3CI2Dec, 2022Toxservices
Butanone 78-93-3CI2Dec, 2022Toxservices
Ammonium hydroxide 1336-21-6CI2Dec, 2022Toxservices
CYBERSOLV C8882NACPGoldJul, 2022Toxservices6
CYBERSOLV C8622NACPGoldJul, 2022Toxservices6
Vital GW9066NACPGoldJul, 2022Toxservices6
Resorcinol Bis-Diphenylphosphate125997-21-9FR2Dec, 2019Dec, 2024Toxservices
Aluminum oxide (non-nano)1344-28-1FR2May, 2020Toxservices
Melamine Polyphosphate
/Melapur® 200
218768-84-4FR2Oct, 2019Oct, 2024Toxservices4
9,10‐Dihydro‐9‐oxa‐10‐phospha
phenanthrene‐10‐oxide (DOPO)
35948‐25‐5FR2May, 2021Gradient
Resorcinol Bis-Diphenylphosphate
/Fyrolflex RDP
57583-54-7FR2Oct, 2019Oct, 2024Gradient4
Tetrakis (2,6-dimethylphenyl)-m-phenylene
biphosphate
139189-30-3FR2Jul, 2022Toxservices
Aluminum diethylphosphinate225789-38-8FR3Feb, 2024Toxservices3*
Cross-linked Phenoxyphosphazene260408-02-4, 1184-10-7,
992-79-0
FR3Mar, 2021Scivera
Octaphenylcyclotetrasiloxane546-56-5FR3Jan, 2020Toxservices
Phosphonic acid aluminium salt56287-23-1FR3Mar, 2021Toxservices
Ammonium Polyphosphate68333-79-9FR3Feb, 2020Toxservices
Phenoxyphosphazene890525-36-7, 2791-22-2,
2791-23-3
FR3Dec, 2022Scivera
Polyphosphonate
/Nofia® Phosphonate
68664-06-2FR3May, 2021Toxservices4
Aryl bisphosphate51732-57-1FR2Jun, 2021Gradient
Poly[phosphonate-co-carbonate]
/Nofia® Copolymer
77226-90-5FR3Feb, 2022Toxservices4
3-Hydroxyphenylphosphinyl-propanoic acid14657-64-8FR2Oct, 2023Toxservices
Magnesite13717-00-5FR3Oct, 2023Toxservices
Coconut Oil Polyester
/GLOBINEX®T-70
854537-29-4PL2Oct, 2019Oct, 2024Gradient4
Di(2-ethylhexyl) Terephthalate (DEHT)6422-86-2PL3Sep, 2019Sep, 2024Toxservices
Di(monoepoxyoleate, Monoacetate)
Glyceryl Adipate
2101439-53-4PL3Jun, 2020Toxservices
White mineral oil8042-47-5PL2Oct, 2021Toxservices
Polyester Resin / Globinex T-802620689-07-6PL3Jun, 2021Toxservices4
Melamine cyanurate37640-57-6FR2Jun, 2023REACH24H
Ethyl Acetate141-78-6CI2Jan, 2024Toxservices
PSS-K2839445-32-6FR3Jan, 2024REACH24H4
Trinonyl benzene-1,2,4-tricarboxylate35415-27-1PL3Feb, 2024REACH24H
Melamine Polyphosphate
/Budit® 342
218768-84-4FR3Feb, 2024WAP4*

* information updated on 14 March, 2024

Substance types
  • CI = Cleaning ingredient
  • CP = Cleaning product
  • FR = Flame retardant
  • PL = Plasticizer
  • S = Stabilizer
Comments
  1. Interchangeable CAS numbers
  2. Assessment is freely available here
  3. Assessment is freely available here
  4. Trade name specific benchmark in accordance to polymeric criteria in GreenScreen v1.4. Other trade names for the same CAS# number must provide a separate GS assessment since any relevant production impurity can impact the final benchmark.
  5. Expired assessment report. A valid assessment report confirming a benchmark score of 2, 3 or 4 must be received before the sunset date for this substance to remain accepted.
  6. Trade name-specific cleaning product (CP) independently assessed to GreenScreen Certified™ Cleaners & Degreasers. Gold and Platinum levels require each chemical in the product to be assessed with GreenScreen for Safer Chemicals and be scored Benchmark 2 or higher. To remain listed, the certification must be updated every third year.

Clarifications

All substances on this list have been assessed and given a benchmark score by Licensed GreenScreen Profilers. To access assessments that are not freely available, please contact the profiler who conducted it.

Potential candidates for TCO Certified Accepted Substance List

This list presents substances that have been previously reviewed by toxicologists. Their assessments indicate that the substances may be classed as safer alternatives. However, to be added to TCO Certified Accepted Substance List, an updated assessment must be carried out by a Licensed GreenScreen Profiler. The substance must receive a benchmark score of 2, 3, or 4 and the assessment report must be submitted to TCO Development. If a substance has been assessed in accordance with a chemical hazard assessment framework other than GreenScreen, it must be converted to GreenScreen.

If you are interested in seeing a substance added to TCO Certified Accepted Substance List or the potential candidate list, contact TCO Development or the profiler organization.

Substance name/Trade nameCAS numberTypeProfiler/s
(Absorbent for acidification)57-13-6CIToxservices
(Thermonatrite)1310-73-2CIToxservices
(Tripropylene Glycol)24800-44-0CIToxservices
1-butoxypropan-2-ol5131-66-8CIToxservices
2-phenoxyethanol122-99-6CIToxservices
2-Propanol, 1-methoxy-107-98-2CIToxservices
3-Buten-2-one, 4-phenyl-122-57-6CIToxservices
C13-C16 Isoparaffin68551-20-2CIToxservices
Castor oil, ethoxylated61791-12-6CIToxservices
Cyclohexane, methyl-108-87-2CIToxservices
Ethyl Acetate141-78-6CIToxservices
Glycerol56-81-5CIToxservices
Hexanedioic acid124-04-9CIToxservices
Isobutyl alcohol78-83-1CIToxservices
Cyclohexanone108-94-1CIToxservices
Parafin8002-74-2CIToxservices
Pentane109-66-0CIToxservices
Phosphorsäure7664-38-2CIToxservices
Polyethylene9002-88-4CIToxservices
Propylene glycol ether29911-28-2CIToxservices
Propylene Glycol N-propyl Ether1569-01-3CIToxservices
Silanol terminated polydimethylsiloxane70131-67-8CIToxservices
Sodium hypochlorite7681-52-9CIToxservices
Sodium tripolyphosphate7758-29-4CIToxservices
Trimethoxy(methyl)silane1185-55-3CIToxservices
Methylisothiazolinone2682-20-4ClToxservices
C13-14 isoparaffin64742-47-8CIToxservices
Propylene glycol
57-55-6CIToxservices
Acetic acid64-19-7CIToxservices
1-Octanol
111-87-5ClToxservices
Diisononyl Cyclohexanedicarboxylate (DINCH)166412-78-8, 474919-59-0PLToxservices
2-Ethyl-1-Hexanol104-76-7PLToxservices
Acetyl tri-butyl citrate (ATBC)77-90-7PLToxservices
Bis(2-ethylhexyl) Adipate (DEHA)103-23-1PLToxservices
Bis(2-propylheptyl) phthalate (DPHP)53306-54-0PLToxservices
Diisononyl Adipate (DINA)33703-08-1PLToxservices
Dimethyl phthalate (DMP)131-11-3PLToxservices
Oxydipropyl Dibenzoate27138-31-4PLToxservices

Last updated: February 15, 2024

Substance types
  • CI = Cleaning ingredient
  • CP = Cleaning product
  • FR = Flame retardant
  • PL = Plasticizer

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GreenScreen® for Safer Chemicals Benchmarks

GreenScreen® for Safer Chemicals is the tool used to identify a pathway to safer alternatives to be used in certified products. GreenScreen offers an objective, scientific way of assessing these potential effects, and finding safer alternatives to the most hazardous substances.

All substances achieving a GreenScreen benchmark are assessed by licensed profilers accredited by Clean Production Action to carry out Green Screen Assessments. In TCO Certified, substances achieving a GreenScreen benchmark 2 or better are accepted for compliance with the criteria for non-halogenated substances.

  Benchmark 4 Few concerns Preferable
  Benchmark 3 Slight concern Improvement possible
  Benchmark 2 Moderate concern Use but search for substitutes
  Benchmark 1 High concern Avoid
  Unspecified Insufficient data to assign a benchmark Avoid