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EC number: 700-188-0 | CAS number: 1333481-90-5
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 09 January 2008 to 29 January 2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study conducted to apropriate OECD, EU and other Guidelines
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.1 (Acute Toxicity (Oral))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.1100 (Acute Oral Toxicity)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: JMAFF guidelines (2000) including the most recent partial revisions
- Deviations:
- no
- GLP compliance:
- yes
- Test type:
- acute toxic class method
- Limit test:
- yes
Test material
- Reference substance name:
- 2-{2-[(2R,4R,6R)-4,6-dihydroxyoxan-2-yl]ethyl}-2,3-dihydro-1H-isoindole-1,3-dione
- EC Number:
- 700-188-0
- Cas Number:
- 1333481-90-5
- Molecular formula:
- C15H17NO5
- IUPAC Name:
- 2-{2-[(2R,4R,6R)-4,6-dihydroxyoxan-2-yl]ethyl}-2,3-dihydro-1H-isoindole-1,3-dione
- Reference substance name:
- Lactol
- IUPAC Name:
- Lactol
- Reference substance name:
- Phthalamido Lactol
- IUPAC Name:
- Phthalamido Lactol
- Details on test material:
- - Name of test material (as cited in study report): Lactol
- Physical state: White powder
- Analytical purity: Not indicated but treated as 100%
- Impurities (identity and concentrations): None reported
- Purity test date: Not reported
- Lot/batch No.: PDC-010-194
- Expiration date of the lot/batch: 13 December 2008 (allocated by NOTOX, 1 year after receipt of test substance
- Stability under test conditions: Not reported
- Storage condition of test material: At room temperature in the dark
- Other:
Constituent 1
Constituent 2
Constituent 3
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River Deutschland, Sulzfeld, Germany.
- Age at study initiation: ca. 10 weeks
- Weight at study initiation: 163 to 189 grams
- Fasting period before study: 20 hours
- Housing: Group housing of 3 animals per cage in labelled Macrolon cages (MIV type; height 18 cm.) containing sterilised sawdust as bedding
material (Litalabo, S.P.P.S., Argenteuil, France) and paper as cage-enrichment (Enviro-dri, Wm. Lillico &Son (Wonham Mill Ltd), Surrey, U.K).
- Diet (e.g. ad libitum): ad libitum, pelleted rodent diet (SM R/M-Z from SSNIFF® Spezialdiaten GmbH, Soest, Germany).
- Water (e.g. ad libitum): ad libitum
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21.0±3.0°C (actual range: 19.8 - 22.2°C)
- Humidity (%): 30-70% (actual range: 30-66%)
- Air changes (per hr): 15/hr
- Photoperiod (hrs dark / hrs light): 12 hours
IN-LIFE DATES: From: 09 January 2008 To: 29 January 2008
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- CMC (carboxymethyl cellulose)
- Details on oral exposure:
- VEHICLE
- Concentration in vehicle: 200mg/kg
- Amount of vehicle (if gavage): 10ml/kg
- Justification for choice of vehicle: trial formulations performed at NOTOX and on test substance data supplied by the Sponsor
- Lot/batch no. (if required): Not reported
- Purity: Not reported
MAXIMUM DOSE VOLUME APPLIED:
2000mg/kg
DOSAGE PREPARATION (if unusual):
CLASS METHOD (if applicable)
- Rationale for the selection of the starting dose:
The toxicity of the test substance was assessed by stepwise treatment of groups of 3 females.
The first group was treated at a dose level of 2000 mg/kg. The absence or presence of mortality
of animals dosed at one step determined the next step, based on the test procedure defined in
the guidelines. The onset, duration and severity of the signs of toxicity were taken into account
for determination of the time interval between the dose groups. - Doses:
- First set of females: 2000 mg/kg Second set of females: 2000 mg/kg
- No. of animals per sex per dose:
- 6 females/per dose
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: observed for mortalities twice daily; Body weights days 1, 8 and 15
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs: At periodic intervals on the day of dosing (Day 1) and once daily thereafter, until Day 15. - Statistics:
- No statistical analyses were performed
Results and discussion
Effect levels
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Mortality:
- There were no mortalities during the study
- Clinical signs:
- other: Hunched posture, piloerection and salivation were noted among the animals on Days 1 and 2.
- Gross pathology:
- No abnormalities were found at macroscopic post mortem examination of the animals.
- Other findings:
- N/A
Applicant's summary and conclusion
- Interpretation of results:
- practically nontoxic
- Remarks:
- Migrated information Criteria used for interpretation of results: other: EU and GHS
- Conclusions:
- The oral LD50 value of LACTOL in Wistar rats was established to exceed 2000 mg/kg body weight.
- Executive summary:
A study was conducted at NOTOX, The Netherlands, on behalf of Pfizer Ireland Pharmaceuticals Ltd., to assess the acute toxicity of the test substance Lactol, when administered in a single oral dose to female rats at one or more defined dosages. The study was conducted to GLP and to OECD 423 and EU B.1., as well as to EPA and JMAFF guidelines. Lactol was administered by oral gavage to two subsequent groups of three female Wistar rats at 2000 mg/kg body weight. Animals were subjected to daily observations and weekly determination of body weight. Macroscopic examination was performed after terminal sacrifice (Day 15). Hunched posture, piloerection and salivation were noted among the animals on Days 1 and 2 but no mortalities occurred during the study. The body weight gain shown by the animals over the study period was considered to be normal. No abnormalities were found at macroscopic post mortem examination of the animals. The oral LD50 value of Lactol in Wistar rats was established to exceed 2000 mg/kg body weight.
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