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| CAS No.: | 77-86-1 |
|---|---|
| Name: | Tris Base |
| Molecular Structure: | |
|
|
|
| Formula: | C4H11NO3 |
| Molecular Weight: | 121.136 |
| Synonyms: | Tris(hydroxymethyl)aminomrthane;Tris (hydroxymethyl) aminoethane;2-Amino-1,3-dihydroxy-2-(hydroxymethyl)propane;2-Amino-2-(hydroxymethyl)propane-1,3-diol;2-Amino-2-hydroxymethylpropan-1,3-diol;2-Amino-2-methylol-1,3-propanediol;Addex-Tham;Aminotri(hydroxymethyl)methane;Aminotrimethylolmethane;Aminotris(hydroxymethyl)methane;Methanamine,1,1,1-tris(hydroxymethyl)-;NSC 103026;NSC 6365;NSC 65434;Pehanorm;TAM(buffering agent);THAM;Talatrol;Tri Amino;Tri(hydroxymethyl)methylamine;Trigmo base;Triladyl;Trimethylolaminomethane;Tris (buffering agent);Tris Amino;Tris Amino Crystal;Tris base;Tris buffer;Tris(methylolamino)methane;[2-Hydroxy-1,1-bis(hydroxymethyl)ethyl]amine;Tris Base; Tris(hydroxymethyl)-aminomethane;Trometamol; |
| EINECS: | 201-064-4 |
| Density: | 1,353 g/cm3 |
| Melting Point: | 167-172 °C(lit.) |
| Boiling Point: | 219-220 °C (10 mmHg) |
| Flash Point: | 219-220°C/10mm |
| Solubility: | water: 4 M at 20 °C, clear, colorless |
| Appearance: | white crystalline powder |
| Hazard Symbols: |
Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 26-36-37/39 |
| PSA: | 86.71000 |
| LogP: | -1.63890 |

B

2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| In water reflux (50 h);; pptn.; filtration; washing (ethanol); drying (vac.); elem. anal.; evapn. of aq. filtrate; extraction (3 times/hot ethanol); cooling of filtrate yields 2-amino-2-hydroxymethyl-1,3-propanediol;; | A 85% B 75% |

| Conditions | Yield |
|---|---|
| With sulfuric acid; iron at 100℃; | |
| With water; iron; iron(II) sulfate at 30℃; | |
| With water; iron; iron(II) sulfate at 100℃; |

Protonated tris(hydroxymethyl)aminoamethane


C14H13NO

A

1-methyl-4-(phenylacetyl)pyridinium cation

B

2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| In water at 25℃; Equilibrium constant; Rate constant; |


Protonated tris(hydroxymethyl)aminoamethane


2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| In water; acetonitrile at 25℃; Thermodynamic data; ΔrGm0, var. of solvent, temp.; |

A

2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| With water at 95℃; Rate constant; |


2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| With mineral acid |

| Conditions | Yield |
|---|---|
| In water at 25℃; Equilibrium constant; |

A

α,β-D-ribofuranose-5-phophate disodium salt

B

2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| Equilibrium constant; |

B

2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| With tetrabutyl ammonium fluoride; triethylamine; trifluoroacetic acid In tetrahydrofuran; methanol; dichloromethane; ethyl acetate |


A

hydrogen fluoride

B

silicon tetrafluoride

C

2-amino-2-hydroxymethyl-1,3-propanediol

| Conditions | Yield |
|---|---|
| In neat (no solvent) thermogravimetric expt. (platinum crucible, heating rate of 10 K/min); heating to 200-268°C; |

1. Introduction of Trometamol
The Tromethamine, with its CAS NO 77-86-1,is a kind of white Crystalline Powderthe. It has synonyms of 1,3-Propanediol, 2-amino-2-(hydroxymethyl)- ; 2-(Hydroxymethyl)-2-amino-1,3-propanediol ; 2-Amino-2-(hydroxymethyl)-1,3-propanediol ; 2-Amino-2-methylol-1,3-propanediol ; AI3-03948 ; Addex-tham ; Aminotrimethylolmethane ; Aminotris(hydroxymethyl)methane and Apiroserum Tham. Trometamol should be stored in shady and cool warehouse.
2. Properties of Trometamol
(1) Einecs: 201-064-4 (2) Index of Refraction: 1.544 (3) Molar Refractivity: 28.68 cm3
(4) Molar Volume: 90.8 cm3 (5) Melting Point: 167-172 °C(lit.) (6) Boiling point: 357 °C at 760 mmHg
(7) Flash Point: 169.7 °C (8) Density: 1.334 g/cm3 (9) Surface Tension: 73.2 dyne/cm
(10) Enthalpy of Vaporization: 69.73 kJ/mol (11) Vapour Pressure: 1.57E-06 mmHg at 25 °C
(12) XLogP3-AA: -2.9 (13) H-Bond Donor: 4 (14) H-Bond Acceptor: 4
3. Structure descriptors of Trometamol
Canonical SMILES: C(C(CO)(CO)N)O
InChI: InChI=1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
InChIKey: LENZDBCJOHFCAS-UHFFFAOYSA-N
4. Safety information of Trometamol
Hazard Codes: 
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S37/39:Wear suitable gloves and eye/face protection.
5. Toxicity data of Trometamol
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intravenous | 1210mg/kg (1210mg/kg) | Acta Biologica et Medica Germanica. Vol. 17, Pg. 217, 1966. | |
| rabbit | LDLo | oral | 1gm/kg (1000mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: MUSCLE WEAKNESS BEHAVIORAL: COMA | Journal of Industrial Hygiene and Toxicology. Vol. 22, Pg. 315, 1940. |
| rat | LD50 | intravenous | 1800mg/kg (1800mg/kg) | Drugs in Japan Vol. -, Pg. 419, 1990. | |
| rat | LD50 | oral | 5900mg/kg (5900mg/kg) | Bollettino Chimico Farmaceutico. Vol. 110, Pg. 653, 1971. |