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Tetramethylammonium methyl sulfate (TMMS) is a quaternary ammonium compound with the chemical formula (CH3)4N+CH3OSO3-. It is a colorless, viscous liquid that is soluble in water and has a strong, pungent odor. TMMS is primarily used as a phase transfer catalyst in organic synthesis, facilitating the transfer of reactants between aqueous and organic phases. It is also employed as a surfactant in various industrial applications, such as oil recovery, textile processing, and detergent formulation. Due to its potential environmental and health risks, proper handling and disposal procedures are essential when working with TMMS.

811-92-7

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Basic information
1. Product Name: TETRAMETHYLAMMONIUM METHYL SULFATE
2. Synonyms: TETRAMETHYLAMMONIUM METHYL SULFATE;n,n,n-trimethyl-methanaminiumethylsulfate;tetramethylammonium methyl sulphate;Tetramethylaminium·methylsulfate
3. CAS NO:811-92-7
4. Molecular Formula: CH₃O₄S*C₄H₁₂N
5. Molecular Weight: 185.24
6. EINECS: 212-373-9
7. Product Categories: N/A
8. Mol File: 811-92-7.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: TETRAMETHYLAMMONIUM METHYL SULFATE(CAS DataBase Reference)
10. NIST Chemistry Reference: TETRAMETHYLAMMONIUM METHYL SULFATE(811-92-7)
11. EPA Substance Registry System: TETRAMETHYLAMMONIUM METHYL SULFATE(811-92-7)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 811-92-7(Hazardous Substances Data)

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811-92-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 811-92-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 811-92:
(5*8)+(4*1)+(3*1)+(2*9)+(1*2)=67
67 % 10 = 7
So 811-92-7 is a valid CAS Registry Number.

InChI:InChI=1/C4H12N.CH4O4S/c1-5(2,3)4;1-5-6(2,3)4/h1-4H3;1H3,(H,2,3,4)/q+1;/p-1

811-92-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name	methyl sulfate,tetramethylazanium

1.2 Other means of identification

Product number	-
Other names	tetramethylammonium methosulfate

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

1.5 Emergency phone number

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

More Details:811-92-7 SDS

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