Methylcyclohexane CAS108-87-2 Cyclohxylmethane; heptanaphthene; methyl-cyclohexan; methylecyclohexane; Metylocykloheksan RTECS No. GV6125000 Molecular Formula C7H14 CAS No. 108-87-2 EINECS No. 203-624-3 UN Dangerous Goods Code (UN No.): 2296 Shipping name: Methylcyclohexane Hazardous classification ：3 Packing Group II Customs code 2902 19 00 grade anhydrous Quality Level 100 vapor density 3.4 (vs air) vapor pressure 37 mmHg ( 20 °C) 83.2 mmHg ( 37.7 °C) Assay ≥99% form liquid autoignition temp. 545 °F impurities <0.002% water <0.005% water (100 mL pkg) evapn. residue <0.0005% refractive index n20/D 1.422 (lit.) bp 101 °C (lit.) mp −126 °C (lit.) density 0.77 g/mL at 25 °C (lit.) SMILES string CC1CCCCC1 InChI 1S/C7H14/c1-7-5-3-2-4-6-7/h7H,2-6H2,1H3 InChI key UAEPNZWRGJTJPN-UHFFFAOYSA-N Application Methylcyclohexane may be used as a solvent for the synthesis of unsolvated n-butylmagnesium chloride by the reaction of 1-chlorobutane with magnesium powder. It may also be used as the starting material to synthesize 1-methylcyclohexanecarboxylic acid. Pharmaceutical intermediates. Methylcyclohexane is an important organic solvent and extractant, which can be used as a solvent for rubber, paint, varnish (some paint solvents also use methylcyclohexane), and can be used as oil extractant. Methylcyclohexane can be used in organic synthesis as solvent and analytical reagent. In addition, methylcyclohexane can also be used as a standard for thermometer calibration. The correction solution is usually made of methylcyclohexane as the main component. Description Catalogue Number 806147 Description Methylcyclohexane Product Information CAS number 108-87-2 EC index number 601-018-00-7 EC number 203-624-3 Hill Formula C₇H₁₄ Chemical formula C₆H₁₁CH₃ Molar Mass 98.19 g/mol HS Code 2902 19 00 Structure formula Image Quality Level MQ200 Physicochemical Information Appearance Form: liquid Color: colorless Explosion limit 1.1 - 6.7 %(V) Flash point -4 °C Ignition temperature 260 °C Melting Point -126.6 °C Solubility 0.014 g/l Initial boiling point and boiling range 101 °C 214 °F - lit. Upper/lower flammability or explosive limits Upper explosion limit: 6.7 %(V) Lower explosion limit: 1.1 %(V) Toxicological Information LD 50 dermal LD50 Rabbit > 86000 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H225: Highly flammable liquid and vapour. H304: May be fatal if swallowed and enters airways. H315: Causes skin irritation. H336: May cause drowsiness or dizziness. H410: Very toxic to aquatic life with long lasting effects. Precautionary Statement(s) P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233: Keep container tightly closed. P273: Avoid release to the environment. P301 + P310: IF SWALLOWED: Immediately call a POISON CENTER/doctor. P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P331: Do NOT induce vomiting. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. Signal Word Danger RTECS GV6125000 Storage class 3 Flammable liquids WGK WGK 2 obviously hazardous to water Safety Information Categories of danger highly flammable, irritant, harmful, dangerous for the environment Storage and Shipping Information Storage Store below +30°C. Transport Information Declaration (railroad and road) ADR, RID UN 2296 , 3, II Declaration (transport by air) IATA-DGR UN 2296 , 3, II Declaration (transport by sea) IMDG-Code UN 2296 , 3, II Specifications Assay (GC, area%) ≥ 99 % Density (d 20 °C/ 4 °C) 0.769 - 0.770 Identity (IR) passes test Storage and transportation: Should be sealed and stored in a dry, cool and ventilated warehouse Package: 200KG/drum Storage: It is recommended to store in dry and cool area with proper ventilation. Please fasten the lid as soon as possible after original packing to prevent the mixing of other substances such as moisture from affecting the product performance. Do not inhale dust and avoid skin and mucous membrane contact. Smoking, eating and drinking are prohibited in the workplace. After work, shower and change clothes. Store contaminated clothes separately and wash them before use. Maintain good hygiene habits. https://www.newtopchem.com/archives/43090 Email us: info@newtopchem.com

TMEDA (N,N,N',N'-Tetramethylethylenediamine) CAS No.:110-18-9 Over view Common Name: N,N,N',N'-Tetramethylethylenediamine Other Chemical Names: N,N,N',N'-Tetramethylethane-1,2-diamine, electrophoresis grade;Four MethylEthylenediaMine;N,N,N',N'-TetraMethylethylenediaMine Molar formular C6H16N2 Molar mass 116.2 Physical and chemical properties: a) Appearance Form: Transparent colorless liquid b) Melting point/freezing point Melting point/range: -55 °C - lit. c) Initial boiling point and boiling range 120 - 122 °C - lit. d) Flash point 20 °C - closed cup e) Evaporation rate no data available f) Flammability (solid, gas) no data available g) Upper/lower flammability or explosive limits Upper explosion limit: 9,08 %(V) Lower explosion limit: 0,98 %(V) h) Relative density 0,775 g/cm3 at 20 °C i) Water solubility soluble j) Partition coefficient: log Pow: 0,3 Features and uses: NT CAT TMEDA is a colorless-to-straw, liquid, tertiary amine with a characteristic aminic odor. It is readily soluble in water, ethyl alcohol, and other organic solvent. It is used as an intermediate in organic synthesis. It is also used as a cross linking catalyst for polyurethane rigid foams. Storage Information NEWTOP Chemical recommends that our catalysts be stored in a dry and cool area under appropriate ventilation conditions. Each container should be closed tightly to avoid contamination with moisture or other negative influences that could change the products’ performance in the end use. Package: 160KG Steel Drum (Toyocat TE/ Kaolizer 11/ Dabco TMEDA) More：https://www.newtopchem.com/archives/41215

PU catalyst： MB20 CAS#: 34364-26-6 Overview: Common Name: BISMUTH NEODECANOATE Other Chemical Names: Neodecanoicacid,bismuth(3+)salt;neodecanoicacid,bismuth(3++)salt;BISMUTHNEODECANOATE;BISMUTH(III)NEODECANOATE;bismuth(3+)neodecanoate;BISMUChemicalbookTHNEODECANOATE,TECH;Bismuth(III)neodecanoate,superconductorgrade~60%inneodecanoicacid(15-20%Bi);Bismuth(III)neodecanoate,superconductorgrade a) Appearance and Properties: Liquid Color: light yellow transparent b) Boiling point, initial boiling point and boiling range 180 °C c) Flash point 158 °C - closed cup d) Evaporation rate No data available e) Flammability (solid, gas) no data available f) high/low flammability or explosiveness limits no data available g) Vapor pressure 0.60mmHg at 21 °C h) Vapour density No data available i) Density/relative density 1.22 g/cm3 at 25 °C j) water soluble insoluble k)n-octanol/water partition coefficient no data available l) Autoignition temperature no data available m) Decomposition temperature no data available n) Viscosity 50mPa.s at 25 °C Features and uses: MB20 is used as a catalyst in the polyurethane industry, showing high catalytic activity, and is widely applicable to spray, high density elastomer, and microcellular elastomer systems. Has the following characteristics: A powerful gel catalyst to promote the completion of the reaction in the later stage; It shows that the viscosity of the system is delayed when the level of intermolecular reaction is low in the early stage of the reaction; Environmentally friendly products that can replace lead and tin-containing catalysts; In the common polyurethane reaction system, the microcellular elastomer system and the high-density semi-rigid foam system enhance the stability of the system reaction. Acts as a co-catalyst with a tertiary amine to accelerate the urethane reaction and cure. Exhibits delayed viscosity build on front-end at low usage level while promoting excellent back-end cure. It is free of mercury, lead and dibutyl tin. Possesses low volatility with little or no odor. It has compatibility with common rigid and flexible foam polyols. It is an alternative to tin-based catalysts in flexible slabstock, high-density flexible foams, spray, microcellular, and rigid foam systems. Storage Information Recommends that our catalysts be stored in a dry and cool area under appropriate ventilation conditions. Each container should be closed tightly to avoid contamination with moisture or other negative influences that could change the products' performance in the end use. Package: 25kg/Plastic Drum, 200KG/Steel Drum, 1000kg/IBC Drum More：https://www.newtopchem.com/archives/39757

PU Catalyst: BDMA (benzyldimethylamine) CAS:103-83-3 Over view: Common Name: Benzyl Dimethyl Amine Other Chemical Names: N,N-Dimethylbenzylamine, Benzenemethamine, N,N-dimethyl-;Benzenemethanamine,N,N-dimethyl-;Benzylamine, Physical and chemical properties: Appearance Form: transprant light yellow liquid Odour no data available PH 10 at 10 g/l at 20 °C Melting point/freezing point Melting point/range: -75 °C - lit. Initial boiling point and boiling range 181 - 184 °C at 1.020 hPa - lit. Flash point 53 °C - closed cup Evaporation rate no data available Flammability (solid, gas) Upper explosion limit: 6,3 %(V) Upper/lower flammability or explosive limits Lower explosion limit: 0,9 %(V) Relative density 0,9 g/cm3 at 25 °C Water solubility soluble Partition coefficient: noctanol/water log Pow: 1,87 Molar formular C9H13N Molar mass 135.21 Features and uses: A liquid tertiary amine catalyst. Can improve foam cure and demolding time. It is an excellent candidate to consider for use in water-NCO reaction in rigid polyurethane foams. BDMA is typically suitable to replace DMCHA in formulations using a high level of water as blowing or co-blowing agent can reduce surface friability and improve adhesion of foam to substrates. BDMA promotes the urethane reaction and is commonly used in high-water rigid foam applications to reduce friability. It has a characteristic but low amine odor, and is soluble in water and in most organic solvents. BDMA is used in flexible slabstock and rigid foam applications. It promotes the urethane reaction and is commonly used in high-water rigid foam applications to reduce friability. BDMA is also used for flexible slabstock foam applications. Storage Information Recommends that our catalysts be stored in a dry and cool area under appropriate ventilation conditions. Each container should be closed tightly to avoid contamination with moisture or other negative influences that could change the products' performance in the end use. Package: 180KG/Steel Drum (DABCO BDMA/Niax BDMA/ PC Cat NP60/ Addocat DB/ Jeffcat BDMA/ Lupragen N103) More :https://www.newtopchem.com/archives/516