CAS 121-43-7|Trimethyl borate

Introduction：Basic information about CAS 121-43-7|Trimethyl borate, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. Chemical & Physical Properties
3. Toxicological Information
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
4. Safety Information
5. Customs
6. Articles8
7. Synonyms

Common Name	Trimethyl borate
CAS Number	121-43-7	Molecular Weight	103.913
Density	0.9±0.1 g/cm3	Boiling Point	67.5±0.0 °C at 760 mmHg
Molecular Formula	C₃H₉BO₃	Melting Point	-34 °C
MSDS	USA	Flash Point	-8.3±0.0 °C
Symbol	GHS02, GHS07, GHS08	Signal Word	Danger

Names

Name	trimethyl borate
Synonym	More Synonyms

Chemical & Physical Properties

Density	0.9±0.1 g/cm3
Boiling Point	67.5±0.0 °C at 760 mmHg
Melting Point	-34 °C
Molecular Formula	C₃H₉BO₃
Molecular Weight	103.913
Flash Point	-8.3±0.0 °C
Exact Mass	104.064476
PSA	27.69000
LogP	1.45
Vapour density	3.59 (vs air)
Vapour Pressure	157.1±0.1 mmHg at 25°C
Index of Refraction	1.335
InChIKey	WRECIMRULFAWHA-UHFFFAOYSA-N
SMILES	COB(OC)OC
Stability	Stable. Incompatible with oxidizing agents. Decomposes slowly in the presence of moisture, rapidly in water. Flammable.
Water Solubility	reacts

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ED5600000

CHEMICAL NAME :: Boric acid, trimethyl ester

CAS REGISTRY NUMBER :: 121-43-7

BEILSTEIN REFERENCE NO. :: 1697939

LAST UPDATED :: 199710

DATA ITEMS CITED :: 12

MOLECULAR FORMULA :: C3-H9-B-O3

MOLECULAR WEIGHT :: 103.93

WISWESSER LINE NOTATION :: 1OBO1&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: AJOPAA American Journal of Ophthalmology. (Ophthalmic Pub. Co., 435 N. Michigan Ave., Suite 1415, Chicago, IL 60611) Series 3: V.1- 1918- Volume(issue)/page/year: 29,1363,1946 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6140 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1600 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1290 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1980 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1600 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 74430 No. of Facilities: 50 (estimated) No. of Industries: 3 No. of Occupations: 4 No. of Employees: 1090 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 74430 No. of Facilities: 192 (estimated) No. of Industries: 7 No. of Occupations: 7 No. of Employees: 4878 (estimated) No. of Female Employees: 369 (estimated)

Safety Information

Symbol	GHS02, GHS07, GHS08
Signal Word	Danger
Hazard Statements	H225-H312-H319-H360FD-H370
Precautionary Statements	P201-P210-P260-P302 + P352 + P312-P308 + P311-P337 + P313
Target Organs	Central nervous system, Eyes
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	F:Flammable;Xn:Harmful;
Risk Phrases	R11;R21
Safety Phrases	S16-S27-S36/37/39-S45-S25-S23-S2
RIDADR	UN 2416 3/PG 2
WGK Germany	3
RTECS	ED5600000
Packaging Group	II
Hazard Class	3
HS Code	2920909090

Customs

HS Code	2920909090
Summary	2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Articles8

Selective formation of organo, organo-aqueous, and hydro gel-like materials from partially hydrolysed poly(vinyl acetate)s based on different boron-containing crosslinkers.

Soft Matter 11 , 5060-6, (2015)

Viscoelastic, gel-like, polymeric dispersions (HVPDs) can be prepared by crosslinking polyols with borax or boric acid in water under alkaline conditions. Rheologically similar HVPDs have been prepare...

Chloromethyl chlorosulfate: a new, catalytic method of preparation and reactions with some nucleophiles.

Org. Biomol. Chem. 2 , 1554, (2004)

The reaction of liquid (gamma-) SO3 with CH2Cl2 at room temperature leads to SO3 insertion into the C-Cl bonds, giving the useful chloromethylating agent chloromethyl chlorosulfate (CMCS). The process...

Identification of epoxide functionalities in protonated monofunctional analytes by using ion/molecule reactions and collision-activated dissociation in different ion trap tandem mass spectrometers.

J. Am. Soc. Mass Spectrom. 23(1) , 12-22, (2012)

A mass spectrometric method has been delineated for the identification of the epoxide functionalities in unknown monofunctional analytes. This method utilizes gas-phase ion/molecule reactions of proto...

Synonyms

Trimthyl borate

BORON METHOXIDE

EINECS 204-468-9

Methyl Borate

B(OCH3)3

TRIMETHYL BORATE FOR SYNTHESIS

Trimethyl borate

boric acid trimethyl ester

trimethyl boronate

Boric acid (HBO), trimethyl ester

trimethyl

trimethoxyborane

THALLIUM HYDROTRIS[3-(2-PYRIDYL)PYRAZOL-1-YL]BORATE

Trimethylborate

Borester O

Boric acid trimethyl ester,Methyl borate

Trimethoxyboron

C3H9BO3

MFCD00008346

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