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78637-85-1

78637-85-1 structure
78637-85-1 structure
  • Name: 3,4-Diaminothiophene
  • Chemical Name: 3,4-Diaminothiophene dihydrobromide
  • CAS Number: 78637-85-1
  • Molecular Formula: C4H6N2S
  • Molecular Weight: 114.16900
  • Create Date: 2018-06-23 19:02:38
  • Modify Date: 2024-01-14 11:17:03

Name 3,4-Diaminothiophene dihydrobromide
Synonyms 3,4-thiophenediamine
3,4-Thiophenediamine dihydrobromide
thiophene-3,4-diamine
3,4-diamino-thiophene
3,4-Diamino-thiophen
thiophene-3,4-diaMinedihydrochloride
MFCD00671511
3,4-Diaminothiophene2HCl
Boiling Point 385.5ºC at 760 mmHg
Melting Point 150ºC
Molecular Formula C4H6N2S
Molecular Weight 114.16900
Flash Point 186.9ºC
Exact Mass 114.02500
PSA 80.28000
LogP 2.07490
Vapour Pressure 2.55E-06mmHg at 25°C
Name: 3 4-Diaminothiophene dihydrobromide 99% Material Safety Data Sheet
Synonym: 3,4-Thiophenediamine dihydrobromid
CAS: 78637-85-1
Section 1 - Chemical Product MSDS Name:3 4-Diaminothiophene dihydrobromide 99% Material Safety Data Sheet
Synonym:3,4-Thiophenediamine dihydrobromid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
78637-85-1 3,4-Diaminothiophene dihydrobromide, 9 unlisted
Hazard Symbols: XN
Risk Phrases: 20/21/22 39

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed. Danger of very serious irreversible effects.
Potential Health Effects
The toxicological properties of this material have not been investigated. Use appropriate procedures to prevent opportunities for direct contact with the skin or eyes and to prevent inhalation.

Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Not available.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Sweep up, then place into a suitable container for disposal.

Section 7 - HANDLING and STORAGE
Handling:
Not available.
Storage:
Not available.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 78637-85-1: CAS# 169698-12-8: Personal Protective Equipment Eyes: Wear safety glasses and chemical goggles if splashing is possible.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Crystalline powder
Color: green gray
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 0 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C4H6N2S.2HBr
Molecular Weight: 275.98

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Not available.
Incompatibilities with Other Materials:
Not available.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen bromide, nitrogen.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 78637-85-1 unlisted.
CAS# 169698-12-8 unlisted.
LD50/LC50:
Not available.
Not available.
Carcinogenicity:
3,4-Diaminothiophene dihydrobromide, 99% - Not listed by ACGIH, IARC, or NTP.
3,4-DIAMINOTHIOPHENE DIHYDROBROMIDE, 99% - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION


Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2811
Packing Group: III
IMO
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing Group: III
RID/ADR
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing group: III

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 39 Danger of very serious irreversible effects.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 78637-85-1: No information available.
CAS# 169698-12-8: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 78637-85-1 is not listed on Canada's Ingredient Disclosure List.
CAS# 169698-12-8 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 78637-85-1 is not listed on the TSCA inventory.
It is for research and development use only.
CAS# 169698-12-8 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A
Hazard Codes Xn
Risk Phrases 39-20/21/22
Safety Phrases 24/25
HS Code 2934999090

~93%

78637-85-1 structure

78637-85-1

Literature: Liao, Bei-Sih; Liu, Shiuh-Tzung Catalysis Communications, 2013 , vol. 32, p. 28 - 31

~92%

78637-85-1 structure

78637-85-1

Literature: Wen, Li; Nietfeld, Jon P.; Amb, Chad M.; Rasmussen, Seth C. Journal of Organic Chemistry, 2008 , vol. 73, # 21 p. 8529 - 8536

~58%

78637-85-1 structure

78637-85-1

Literature: Kuraray Co., Ltd.; Kondou, Yoshirou; Nakano, Kirihiro; Otake, Tomiaki Patent: US8519150 B2, 2013 ; Location in patent: Page/Page column 33; 34 ;
HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%