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5351-91-7

5351-91-7 structure
5351-91-7 structure
  • Name: Hydrazinecarbothioamide,2-(2-thienylmethylene)-
  • Chemical Name: 2-(2-thienylmethylidene)hydrazine-1-carbothioamide
  • CAS Number: 5351-91-7
  • Molecular Formula: C6H7N3S2
  • Molecular Weight: 185.27000
  • Create Date: 2018-12-27 14:46:52
  • Modify Date: 2023-01-11 09:12:40

Name 2-(2-thienylmethylidene)hydrazine-1-carbothioamide
Synonyms 2-thiophenecarbaldehydethiosemicarbazone
2-(1H-IMIDAZOL-1-YL)BENZYLAMINE
2-(2-thienylmethylene)-hydrazinecarbothioamid
IFLAB-BB F0802-0054
thiophene-2-carboxaldehyde thiosemicarbazone
4-(thenylidene)-2-thio-semicarbazid
Thiophen-2-carbaldehyd-thiosemicarbazon
thiophene thiosemicarbazone
2-formylthiophenethiosemicarbazone
2-thiophenealdehydethiosemicarbazone
1-(THEN-2-YLIDENE)THIOSEMICARBAZIDE
THIOPHENE-2-CARBALDEHYDE THIOSEMICARBAZONE
2-thiophenecarboxaldehyde,thiosemicarbazone
thiophene-2-methylene thiosemicarbazone
Density 1.42g/cm3
Boiling Point 329.5ºC at 760mmHg
Melting Point 187ºC
Molecular Formula C6H7N3S2
Molecular Weight 185.27000
Flash Point 153.1ºC
Exact Mass 185.00800
PSA 110.74000
LogP 2.00640
Index of Refraction 1.71
Name: 2-(2-Thienylmethylidene)hydrazine-1-carbothioamide 97% Material Safety Data Sheet
Synonym: 1-(2-Thienyl)thiosemicarbazid
CAS: 5351-91-7
Section 1 - Chemical Product MSDS Name:2-(2-Thienylmethylidene)hydrazine-1-carbothioamide 97% Material Safety Data Sheet
Synonym:1-(2-Thienyl)thiosemicarbazid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
5351-91-7 2-(2-Thienylmethylidene)hydrazine-1-ca 97% unlisted
Hazard Symbols: XN
Risk Phrases: 20/21/22 36/37/38

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed.
Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

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:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 5351-91-7: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: Not available.
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 182 - 185 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: C6H7N3S2
Molecular Weight: 185

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Oxidizing agents, acids, reducing agents, bases.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 5351-91-7: XM8180000 LD50/LC50:
CAS# 5351-91-7: Oral, mouse: LD50 = 226 mg/kg.
Carcinogenicity:
2-(2-Thienylmethylidene)hydrazine-1-carbothioamide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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 LIQUID, ORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2810
Packing Group: III
IMO
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing Group: III
RID/ADR
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
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 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 5351-91-7: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 5351-91-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 5351-91-7 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XM8180000
CHEMICAL NAME :
2-Thiophenecarboxaldehyde, thiosemicarbazone
CAS REGISTRY NUMBER :
5351-91-7
LAST UPDATED :
199803
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C6-H7-N3-S2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,25,1953
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
226 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YHHPAL Yaoxue Xuebao. Acta Pharmaceutica Sinica. Pharmaceutical Journal. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1953- Suspended 1966-78. Volume(issue)/page/year: 24,737,1989
Hazard Codes Xn:Harmful;
Risk Phrases R20/21/22;R36/37/38
Safety Phrases S26-S36/37/39
HS Code 2934999090
Precursor  0

DownStream  3

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%