3,3'-dimethoxybenzidine SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： 3,3'-dimethoxybenzidine
- CAS： 119-90-4
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses： For R&D use only. Not for medicinal, household or other use.
- Uses advised against： none
Company Identification
- Company：Chemicalbook.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Acute toxicity - Category 4, Oral
Carcinogenicity, Category 1B
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Danger
H302 Harmful if swallowed
H350 May cause cancer
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P203 Obtain, read and follow all safety instructions before use.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P318 IF exposed or concerned, get medical advice.
P405 Store locked up.
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: 3,3'-dimethoxybenzidine
- Common names and synonyms: 3,3'-dimethoxybenzidine
- CAS number: 119-90-4
- EC number: 204-355-4
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Refer for medical attention .
Most important symptoms/effects, acute and delayed
Exposure Routes: inhalation, skin absorption, ingestion, skin and/or eye contact Symptoms: Irritation skin Target Organs: Skin, kidneys, liver, thyroid, liver (NIOSH, 2016)
Indication of immediate medical attention and special treatment needed, if necessary
Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for shock and treat if necessary . Anticipate seizures and treat if necessary . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patent can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal . Aniline and related compounds
SECTION 5: Firefighting measures
Suitable extinguishing media
Water, carbon dioxide, dry chemical.
Specific hazards arising from the chemical
This chemical is combustible. (NTP, 1992)
Special protective actions for fire-fighters
Use water spray, dry powder, carbon dioxide.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Personal protection: chemical protection suit. Vacuum spilled material with specialist equipment.
Environmental precautions
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Personal protection: chemical protection suit. Vacuum spilled material with specialist equipment.
Methods and materials for containment and cleaning up
PRECAUTIONS FOR "CARCINOGENS": A high-efficiency particulate arrestor (HEPA) or charcoal filters can be used to minimize amt of carcinogen in exhausted air ventilated safety cabinets, lab hoods, glove boxes or animal rooms ... Filter housing that is designed so that used filters can be transferred into plastic bag without contaminating maintenance staff is avail commercially. Filters should be placed in plastic bags immediately after removal ... The plastic bag should be sealed immediately ... The sealed bag should be labelled properly ... Waste liquids ... should be placed or collected in proper containers for disposal. The lid should be secured & the bottles properly labelled. Once filled, bottles should be placed in plastic bag, so that outer surface ... is not contaminated ... The plastic bag should also be sealed & labelled. ... Broken glassware ... should be decontaminated by solvent extraction, by chemical destruction, or in specially designed incinerators. Chemical Carcinogens
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from oxidants and food and feedstuffs. Well closed.PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. Chemical Carcinogens
SECTION 8: Exposure controls/personal protection
Control parameters
MAK: carcinogen category: 2
no data available
Appropriate engineering controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures, such as personal protective equipment (PPE)
Wear face shield or eye protection in combination with breathing protection.
Protective gloves. Protective clothing.
Use ventilation (not if powder), local exhaust or breathing protection.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
PHYSICAL DESCRIPTION: Colorless crystals or a light brown powder. Turns violet on standing. Carcinogen.
-
Colour：
LEAFLETS OR NEEDLES FROM WATER
-
Odour：
no data available
-
Melting point/freezing point：
-26°C(lit.)
-
Boiling point or initial boiling point and boiling range：
155°C
-
Flammability：
Combustible Solid
-
Lower and upper explosion limit/flammability limit：
no data available
-
Flash point：
206°C
-
Auto-ignition temperature：
no data available
-
Decomposition temperature：
no data available
-
pH：
WEAK BASE
-
Kinematic viscosity：
no data available
-
Solubility：
less than 0.1 mg/mL at 68° F (NTP, 1992)
-
Partition coefficient n-octanol/water：
log Kow = 1.81
-
Vapour pressure：
2.49E-06mmHg at 25°C
-
Density and/or relative density：
1.178g/cm3
-
Relative vapour density：
8.5 (NTP, 1992) (Relative to Air)
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
NIOSH considers o-dianisidine to be a potential occupational carcinogen.
Decomposes on burning. This produces toxic fumes including nitrogen oxides. Reacts with oxidants.
Chemical stability
no data available
Possibility of hazardous reactions
Combustible when exposed to heat or flame.The vapour is heavier than air and may travel along the ground; distant ignition possible.3,3'-DIMETHOXYBENZIDINE is a weak base. Reacts exothermically with acids. Sensitive to heat, air and prolonged exposure to light.
Conditions to avoid
no data available
Incompatible materials
Can react with oxidizing materials.
Hazardous decomposition products
When heated to decomp it emits toxic fumes of /nitrogen oxides/.
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 Rat oral 1920 mg/kg
- Inhalation: no data available
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
Inadequate evidence of carcinogenicity in humans. Sufficient evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 2B: The agent is possibly carcinogenic to humans.
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
This substance is probably carcinogenic to humans.
Aspiration hazard
A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
Persistence and degradability
3,3'-Dimethoxybenzidine was reported to be resistant to biodegradation in the Japanese MITI test(1). At low levels of yeast extract, 3,3'-dimethyoxybenzidine showed no consistent degradation in an OECD AFNOR sewage die-away test and it was not classified as readily biodegradable; only high levels of yeast extract (100-200 mg/l) enchanced the biodegradation of this compound(2). 3,3'-Dimethyoxybenzidine at 35 deg C and an initial concn of 100 mg/l in the presence of an anaerobic sludge inoculum degraded 100% in 42 days(3).
Bioaccumulative potential
An estimated BCF of 5 was calculated for 3,3'-dimethoxybenzidine(SRC), using a log Kow of 1.81(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
Mobility in soil
The Koc of 3,3'-dimethoxybenzidine is estimated as 230(SRC), using a measured log Kow of 1.81(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 3,3'-dimethoxybenzidine is expected to have moderate mobility in soil(SRC). The first pKa of 3,3'-dimethoxybenzidine is estimated as 4.2(SRC), using an estimation method based on perturbed molecular orbital theory and linear free energy (LFER) methods(4). This estimated pKa indicates that 3,3'-dimethoxybenzidine will partially exist in the protonated form under acidic conditions and cations have greater adsorption to soils than neutral molecules(SRC). Furthermore, 3,3'-dimethoxybenzidine is an aromatic amine which may form covalent bonds with humic materials resulting in relatively immobile quinone-like complexes(5).
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
UN Number
ADR/RID: UN3077 (For reference only, please check.)
IMDG: UN3077 (For reference only, please check.)
IATA: UN3077 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
IMDG: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
IATA: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 9 (For reference only, please check.)
IMDG: 9 (For reference only, please check.)
IATA: 9 (For reference only, please check.)
Packing group, if applicable
ADR/RID: III (For reference only, please check.)
IMDG: III (For reference only, please check.)
IATA: III (For reference only, please check.)
Environmental hazards
ADR/RID: Yes
IMDG: Yes
IATA: Yes
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
Other Information
Do NOT take working clothes home.Depending on the degree of exposure, periodic medical examination is suggested.