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305832-67-1

305832-67-1 structure
305832-67-1 structure

Name (5-cyanothiophen-2-yl)boronic acid
Synonyms (5-Cyano-2-thienyl)boronic acid
5-cyanothiophene-2-boronic acid
Boronic acid, B-(5-cyano-2-thienyl)-
5-cyanothiophen-2-yl-2-boronic acid
5-cyano-2-thiophene boronic acid
5-cyanothiophen-2-ylboronic acid
MFCD02094029
5-cyano-2-thiophenyl boronic acid
(5-Cyanothiophen-2-yl)boronic acid
5-Boronothiophene-2-carbonitrile
Density 1.4±0.1 g/cm3
Boiling Point 369.3±52.0 °C at 760 mmHg
Melting Point 175 °C
Molecular Formula C5H4BNO2S
Molecular Weight 152.967
Flash Point 177.1±30.7 °C
Exact Mass 153.005585
PSA 92.49000
LogP 0.64
Vapour Pressure 0.0±0.9 mmHg at 25°C
Index of Refraction 1.588
Storage condition Refrigerator (+4°C)
Water Solubility insoluble
Name: 5-Cyano-2-thienylboronic acid 97% Material Safety Data Sheet
Synonym:
CAS: 305832-67-1
Section 1 - Chemical Product MSDS Name:5-Cyano-2-thienylboronic acid 97% Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
305832-67-1 5-Cyano-2-thienylboronic acid 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:

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:
Vacuum or sweep up material and place into a suitable disposal 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# 305832-67-1: 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: Solid
Color: Not available.
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 137.4 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: C5H4BNO2S
Molecular Weight: 152.97

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide, boron oxides.
Hazardous Polymerization: Not available.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 305832-67-1 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
5-Cyano-2-thienylboronic acid - 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: NITRILES, SOLID, TOXIC, N.O.S.*
Hazard Class: 6.1
UN Number: 3276
Packing Group: III
IMO
Shipping Name: NITRILES, TOXIC, N.O.S.
Hazard Class: 6.1
UN Number: 3276
Packing Group: III
RID/ADR
Shipping Name: NITRILES, TOXIC, N.O.S.
Hazard Class: 6.1
UN Number: 3276
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# 305832-67-1: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 305832-67-1 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 305832-67-1 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A
Hazard Codes Xn:Harmful;
Risk Phrases R20/21/22;R36/37/38
Safety Phrases S26-S36/37/39
RIDADR 3439
Packaging Group III
Hazard Class 6.1
HS Code 2934999090

~91%

305832-67-1 structure

305832-67-1

Literature: American Home Products Corporation; Ligand Pharmaceuticals, Inc. Patent: US6355648 B1, 2002 ; Location in patent: Page column 64 ; US 6355648 B1
Precursor  1

DownStream  0

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