Searching, Assessment, and Screening system for safer alternative chemicals

Searching, assessment, and screening system for safer alternative chemicals, GreenN (Green Next)

    e.g.

    Tetrafluoroethylene

    Chemical structure of PubChem CID 8301

    Risk Level Help

    Chemical Substance Information

    • PubChem CID: 8301
    • CAS: 116-14-3
    • Safety Data Sheet: Link
    • SMILES: FC(F)=C(F)F
    • This chemical is a PFAS substance

    Hazard Assessment Overview Help

    Hazard Sunburst Chart Legend

    Hazard Assessment Summary Table Help CSV format XLSX format
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    Assessment Type Carcinogenicity Mutagenicity Reproductive Toxicity Developmental Toxicity Endocrine Disruption
    Hazard Assessment Level
    High
    High
    Insufficient data
    for classification
    Medium
    Insufficient data
    for classification
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    Assessment Type Acute Toxicity Systemic Toxicity - Single Dose Systemic Toxicity - Repeated Dose Neurotoxicity - Single Dose Skin Sensitization Respiratory Sensitization Skin Irritation Eye Irritation
    Hazard Assessment Level
    Very High
    Insufficient data
    for classification
    Insufficient data
    for classification
    Insufficient data
    for classification
    Insufficient data
    for classification
    Insufficient data
    for classification
    Very High
    Medium
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    Assessment Type Acute Aquatic Toxicity Chronic Aquatic Toxicity
    Hazard Assessment Level
    Insufficient data
    for classification
    Insufficient data
    for classification
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    Assessment Type Persistence Bioaccumulation
    Hazard Assessment Level
    Very High
    Insufficient data
    for classification
    Assessment Type Reactivity Flammability
    Hazard Assessment Level
    Insufficient data
    for classification
    Very High
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    Hazard Diagnostic Modules

    The Hazard Diagnostic Module consists of the following four computational chemistry methods. The predicted toxicity alerts are for reference only and should be evaluated together with other available data.

    1. Substructure Alerts
    2. Similarity Alerts
    3. Read-Across
    4. Classification Models

    SMARTS Pattern Endpoint Source Author Journal Reference
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    Physical and Chemical Properties

    Property Value Source
    Boiling Point -76.2778 °C
    As reported: -105.3 °F at 760 mmHg (NTP, 1992)
    Other sources (3)
    • -75.9 °C — ILO-WHO International Chemical Safety Cards (ICSCs)
    • -76.2778 °C (-105.3 °F) — Occupational Safety and Health Administration (OSHA)
    • -75.9 °C (-75.9 °C @760 [mm Hg]) — PAC Chemical Database, U.S. Department of Energy
    		CAMEO Chemicals
    Melting Point -142.5 °C
    As reported: -224.5 °F (NTP, 1992)
    Other sources (4)
    • -131.2 °C — ILO-WHO International Chemical Safety Cards (ICSCs)
    • -142.5 °C (-224.5 °F) — Occupational Safety and Health Administration (OSHA)
    • -131.15 °C — PAC Chemical Database, U.S. Department of Energy
    • ODORLESS OR FAINT ODOR; CRITICAL TEMP: 92 °F= 33 °C= 306 DEG K; HEAT OF POLYMERIZATION: -450 BTU/LB= 250 CAL/G= -10.5X10+5 JOULES/KG; CRITICAL PRESSURE: 573 PSIA= 38.9 ATM= 3.95 MN/SQ M; HEAT OF COMBUSTION: -4,000 BTU/LB= -2,000 CAL/G= -90X10+5 JOULES/KG /INHIBITED/ — Hazardous Substances Data Bank (HSDB)
    		CAMEO Chemicals
    Flash Point <32 °F (<0 °C) (closed cup) /Tetrafluoroethylene, inhibited/ Hazardous Substances Data Bank (HSDB)
    Vapor Pressure 3039.74 kPa
    As reported: 22800 mmHg at 70 °F (NTP, 1992)
    Other sources (4)
    • 3039.74 kPa (22800 mmHg at 70 °F) — Occupational Safety and Health Administration (OSHA)
    • 99.9915 kPa (750 [mm Hg] @-75.8 °C) — PAC Chemical Database, U.S. Department of Energy
    • 2.45X10+4 mm Hg at 25 °C /extrapolated/ — Hazardous Substances Data Bank (HSDB)
    • Vapor pressure, kPa at 20 °C: 2947 — ILO-WHO International Chemical Safety Cards (ICSCs)
    		CAMEO Chemicals
    Solubility Insoluble (NTP, 1992)
    Other sources (2)
    • In water, 1.59X10+2 mg/L at 25 °C — Hazardous Substances Data Bank (HSDB)
    • Solubility in water, mg/l at 25 °C: 159 (very slightly soluble) — ILO-WHO International Chemical Safety Cards (ICSCs)
    		CAMEO Chemicals
    Density 1.519 g·cm⁻³
    As reported: 1.519 g/cu cm at -76 °C
    Other sources (5)
    • 1.5 g·cm⁻³ (Density (at -76 °C): 1.5 g/cm³) — ILO-WHO International Chemical Safety Cards (ICSCs)
    • 1.519 at -105 °F (NTP, 1992) - Denser than water; will sink — CAMEO Chemicals
    • Critical density = 0.58 g/cu cm; Heat of evaporation = 16,821 J/mol at -75.6 °C — Hazardous Substances Data Bank (HSDB)
    • 1.519 at -105 °F — Occupational Safety and Health Administration (OSHA)
    • 1.519 @ -76°C — PAC Chemical Database, U.S. Department of Energy
    		Hazardous Substances Data Bank (HSDB)
    Partition Coefficient (LogP) 1.21 (estimated) ILO-WHO International Chemical Safety Cards (ICSCs)

    Source: PubChem

    Safer Alternatives

    Safer alternatives are referenced from current safer chemical databases and software logic, divided into the following three categories:

    1. The system compiles industrial uses of chemicals from the US EPA ChemView database and integrates them with the US EPA Safer Chemical Ingredients to create a safer alternatives list for each chemical. Chemicals may have multiple industrial uses, so the system uses an accordion-style display. Click the 'Suggested Safer Alternatives' tab to expand the table. If the use is broad (e.g., 'Commercial use'), the list may include more specific uses (e.g., 'Solvent'). If no information is available, refer to 'By Industrial Use (Full List)' for manual filtering.
    2. Categorized by industrial use (full list). This list contains safer chemicals for industrial uses, not necessarily replacements for the chemical on this page. You may filter by industrial use via the search bar at the top right of this tab, e.g., filter by 'Antioxidants'. Source: Safer Chemical Ingredients List
    3. Categorized by structural similarity, requiring:
      • Find chemicals with similar functional groups based on structural similarity (Tanimoto coefficient ≥ 0.8), likely having similar functions.
      • Chemicals identified as lower risk by risk assessment, such as level 3, level 4, or insufficient data.
      Practical substitution feasibility still requires domain knowledge and reference to physicochemical properties. For insufficient data (U), it means current hazard and risk assessment information is limited; thus, selection should be cautious and toxicology studies should be reviewed.
    4. Based on real-world case studies. Source: OECD SAAT

    Based on substructure, the system lists chemicals with risk levels 3 (usable but safer alternatives may be sought), 4 (safer chemicals), or insufficient data (U: not enough data to determine risk level). Information

    Download: CSV format XLSX format
    Name CAS Industrial Use Safety Risk Level Data Source Notes
    Download: SCIL (CSV) SCIL (XLSX) ZeroPM PFAS (CSV) ZeroPM PFAS (XLSX) SUBSPORT+ case alternatives (CSV) SUBSPORT+ case alternatives (XLSX)
    Name CAS Industrial Use Safety Notes
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    Source: ZeroPM Alternative Assessment Database v2.0 (published 2024/04; the Flagged column is as of 2022/01)
    Alternative Type CAS Application Technical feasibility Market uptake Source
    OECD SAAT alternative case studies

    Full list of OECD SAAT case studies (not filtered by chemical).

    Case Study Name Link Publish Date Publishing Organization Related Products Description

    Contents

    1. Risk Level
    2. Chemical Substance Information
    3. Hazard Assessment Overview
    4. Hazard Assessment Summary Table
    5. Hazard Diagnostic Modules
    6. Safer Alternatives