Diethyl azodicarboxylate
CAS No.: 1972-28-7 Formula: C6H10N2O4 Molecular Weight: 174.15500
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Diethyl azodicarboxylate

CAS No.: 1972-28-7 Formula: C6H10N2O4 Molecular Weight: 174.15500
Suppliers: All (168) China Suppliers (120) Price Available (29) Contractor (3)

Description

Diethyl azodicarboxylate, conventionally abbreviated as DEAD and sometimes as DEADCAT, is an organic compound with the structural formula CH3CH2O2CN=NCO2CH2CH3. Its molecular structure consists of a central azo functional group, RN=NR, flanked by two ethyl ester groups. This orange-red liquid is a valuable reagent but also quite dangerous and explodes upon heating. Therefore, commercial shipment of pure diethyl azodicarboxylate is prohibited in the United States and is carried out either in solution or on polystyrene particles.
DEAD is an aza-dienophile and an efficient dehydrogenating agent, converting alcohols to aldehydes, thiols to disulfides and hydrazo groups to azo groups; it is also a good electron acceptor. While DEAD is used in numerous chemical reactions, it is mostly known as the principal component of the Mitsunobu reaction, which is daily carried out in chemical laboratories, and can be used for the synthesis of various natural products and pharmaceuticals. In particular, the resulting chemical zidovudine is a major drug against AIDS and FdUMP is a potent antitumor agent, also procarbazine, a nonreversible MAOI.

Properties

Appearance & Physical State
red to orange liquid
Density
1.106
Boiling Point
106ºC (13 mmHg)
Flash Point
106.9ºC
Refractive Index
n20/D 1.47
Stability
Stable, but may explode if heated under confinement. May be shock sensitive. Decomposes vigorously if heated above 100ºC. Incompatible with strong acids, strong bases, strong oxidizing agents, strong reducing agents. Light sensitive.
Storage Condition
2-8ºC
Vapor Pressure
0.589mmHg at 25°C

Safety Info

Hazard Class
6.1
Safety Statements
S26-S36/37-S62
HS Code
2927000090
Packing Group
III
WGK Germany
3
RIDADR
UN 3233
Risk Statements
R5; R11; R20; R36/37/38; R48/20; R63; R65; R67
Hazard Codes
F; Xn
Symbol
GHS02, GHS07, GHS08
Hazard Declaration
H226; H242; H304; H315; H319; H335 + H336; H361d; H373
Signal Word
Danger
Caution Statement
P261; P281; P301 + P310; P305 + P351 + P338; P331
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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name
Diethyl azodicarboxylate

1.2 Other means of identification

Product number
-
Other names
(E)-Diethyl diazene-1,2-dicarboxylate

1.3 Recommended use of the chemical and restrictions on use

Identified uses
For industry use only.
Uses advised against
no data available

1.4 Supplier's details

Company
MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address
Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone
+86(21)64956998
Fax
+86(21)54365166

1.5 Emergency phone number

Emergency phone number
+86-400-6021-666
Service hours
Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Self- reactive substances and mixtures, Type A

Skin irritation, Category 2

Eye irritation, Category 2

Acute toxicity - Inhalation, Category 4

Specific target organ toxicity – single exposure, Category 3

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H240 Heating may cause an explosion

H315 Causes skin irritation

H319 Causes serious eye irritation

H332 Harmful if inhaled

H335 May cause respiratory irritation

Precautionary statement(s)
Prevention

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P234 Keep only in original packaging.

P235 Keep cool.

P240 Ground and bond container and receiving equipment.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P264 Wash ... thoroughly after handling.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

Response

P370+P372+P380+P373 In case of fire: Explosion risk. Evacuate area. DO NOT fight fire when fire reaches explosives.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P321 Specific treatment (see ... on this label).

P332+P313 If skin irritation occurs: Get medical advice/attention.

P362+P364 Take off contaminated clothing and wash it before reuse.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P337+P313 If eye irritation persists: Get medical advice/attention.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P312 Call a POISON CENTER/doctor/…if you feel unwell.

Storage

P403 Store in a well-ventilated place.

P411 Store at temperatures not exceeding …°C/…°F.

P420 Store separately.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
Diethyl azodicarboxylate
Diethyl azodicarboxylate
1972-28-7
none
100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

no data available

4.3 Indication of immediate medical attention and special treatment needed, if necessary

no data available

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2 Specific hazards arising from the chemical

no data available

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state
red to orange liquid
Colour
no data available
Odour
no data available
Melting point/ freezing point
no data available
Boiling point or initial boiling point and boiling range
116-117°C
Flammability
no data available
Lower and upper explosion limit / flammability limit
no data available
Flash point
41°C
Auto-ignition temperature
no data available
Decomposition temperature
no data available
pH
no data available
Kinematic viscosity
no data available
Solubility
no data available
Partition coefficient n-octanol/water (log value)
no data available
Vapour pressure
0.589mmHg at 25°C
Density and/or relative density
0.956g/mLat 25°C
Relative vapour density
no data available
Particle characteristics
no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

no data available

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

no data available

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • 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

    no data available

    Reproductive toxicity

    no data available

    STOT-single exposure

    no data available

    STOT-repeated exposure

    no data available

    Aspiration hazard

    no data available

    12.Ecological information

    12.1 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
  • 12.2 Persistence and degradability

    no data available

    12.3 Bioaccumulative potential

    no data available

    12.4 Mobility in soil

    no data available

    12.5 Other adverse effects

    no data available

    13.Disposal considerations

    13.1 Disposal methods

    Product

    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.

    Contaminated packaging

    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.

    14.Transport information

    14.1 UN Number

    ADR/RID: UN3379
    IMDG: UN3379
    IATA: UN3379

    14.2 UN Proper Shipping Name

    ADR/RID: DESENSITIZED EXPLOSIVE, LIQUID, N.O.S.
    IMDG: DESENSITIZED EXPLOSIVE, LIQUID, N.O.S.
    IATA: DESENSITIZED EXPLOSIVE, LIQUID, N.O.S.

    14.3 Transport hazard class(es)

    ADR/RID: 4.1
    IMDG: 4.1
    IATA: 4.1

    14.4 Packing group, if applicable

    ADR/RID: III
    IMDG: III
    IATA: III

    14.5 Environmental hazards

    ADR/RID: no
    IMDG: no
    IATA: no

    14.6 Special precautions for user

    no data available

    14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

    no data available

    15.Regulatory information

    15.1 Safety, health and environmental regulations specific for the product in question

    Chemical name Common names and synonyms CAS number EC number
    Diethyl azodicarboxylate
    Diethyl azodicarboxylate
    1972-28-7
    none
    European Inventory of Existing Commercial Chemical Substances (EINECS)
    Listed.
    EC Inventory
    Listed.
    United States Toxic Substances Control Act (TSCA) Inventory
    Not Listed.
    China Catalog of Hazardous chemicals 2015
    Not Listed.
    New Zealand Inventory of Chemicals (NZIoC)
    Listed.
    Philippines Inventory of Chemicals and Chemical Substances (PICCS)
    Listed.
    Vietnam National Chemical Inventory
    Not Listed.
    Chinese Chemical Inventory of Existing Chemical Substances (China IECSC)
    Not Listed.

    16.Other information

    Information on revision

    Creation Date
    Aug 13, 2017
    Revision Date
    Aug 13, 2017

    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/

  • Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
    MSDS Expand
    1H NMR : 90 MHz in CDCl3Expand

    NMR Spectrum 1H NMR : 90 MHz in CDCl3

    Collapse

    C6 H10 N2 O4 0.04 ml : 0.5 ml CDCl3
    diethyl azodiformate

    Assign. Shift(ppm)
    A 4.505
    B 1.444

    IR : CCl4 solutionExpand
    Mass spectrum (electron ionization)Expand
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