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Di(trimethylol propane)

CAS No.
23235-61-2
Chemical Name:
Di(trimethylol propane)
Synonyms
DTMP;DI-TMP;DI(TRIMETHYLOLPROPANE);Ditrimethylol;Einecs 245-509-0;Di(trimethylolpropane)>Bis(trihydroxymethyl)propane;3,3,4-trimethyl-1,2-dioxetane;Perstorp Di-Trimethylolpropane;Bis (1,1,1-trimethylolpropane)
CBNumber:
CB2187026
Molecular Formula:
C12H26O5
Molecular Weight:
250.33
MDL Number:
MFCD00192117
MOL File:
23235-61-2.mol
MSDS File:
SDS
Last updated:2026-01-13 11:16:03
Product description Number Pack Size Price
Di(trimethylolpropane) 97% 416134 250g $67.4
Di(trimethylolpropane) 97% 416134 1kg $192
Di(trimethylolpropane) >98.0%(GC) D4538 25g $18
Di(trimethylolpropane) >98.0%(GC) D4538 500g $60
Di(trimethylolpropane) D494263 2.5g $75
More product size

Di(trimethylol propane) Properties

Melting point 108-111 °C(lit.)
Boiling point 215 °C4 mm Hg(lit.)
Density 1.0187 (rough estimate)
vapor pressure 0Pa at 25℃
refractive index 1.4560 (estimate)
storage temp. Store at room temperature
solubility soluble in Methanol
form powder to crystal
pka 13.90±0.10(Predicted)
color White to Almost white
Water Solubility 21g/L at 20℃
BRN 1860782
InChI 1S/C12H26O5/c1-3-11(5-13,6-14)9-17-10-12(4-2,7-15)8-16/h13-16H,3-10H2,1-2H3
InChIKey WMYINDVYGQKYMI-UHFFFAOYSA-N
SMILES CCC(CO)(CO)COCC(CC)(CO)CO
LogP 0.88 at 25℃
FDA UNII 53E6MN32Z5
EPA Substance Registry System 1,3-Propanediol, 2,2'-[oxybis(methylene)]bis[2-ethyl- (23235-61-2)
UNSPSC Code 12162002
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
PPE Eyeshields, Gloves, type N95 (US)
Safety Statements  22-24/25
WGK Germany  3
TSCA  TSCA listed
HS Code  29094990
Storage Class 13 - Non Combustible Solids

Di(trimethylol propane) price More Price(11)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 416134 Di(trimethylolpropane) 97% 23235-61-2 250g $67.4 2026-04-30 Buy
Sigma-Aldrich 416134 Di(trimethylolpropane) 97% 23235-61-2 1kg $192 2026-04-30 Buy
TCI Chemical D4538 Di(trimethylolpropane) >98.0%(GC) 23235-61-2 25g $18 2026-04-30 Buy
TCI Chemical D4538 Di(trimethylolpropane) >98.0%(GC) 23235-61-2 500g $60 2026-04-30 Buy
TRC D494263 Di(trimethylolpropane) 23235-61-2 2.5g $75 2021-12-16 Buy
Product number Packaging Price Buy
416134 250g $67.4 Buy
416134 1kg $192 Buy
D4538 25g $18 Buy
D4538 500g $60 Buy
D494263 2.5g $75 Buy

Di(trimethylol propane) Chemical Properties,Uses,Production

Description

Di(trimethylol propane), Di-TMP, 2,2-[oxybis(methylene)]-bis(2-ethyl)-1,3-propanediol is a colorless and crystalline substance (mp 112 – 114 ℃), only slightly soluble in water at ambient temperature (2.6 g/100 g at 25 ℃).It is a byproduct of 2-ethyl-2-hydroxymethyl-1,3-propanediol (TMP) production and can be isolated from the residue of the TMP distillation step. Newer investigations show that ditrimethylolpropane can be prepared in high yield and selectivity by the reaction of TMP, formaldehyde, and 2-ethylacrolein.

Uses

Di(trimethylolpropane) can be used for the synthesis of lipase catalyzed hyperbranched polymers. It can also be used in the formation of biodegradable polymers for drug delivery applications.

Application

Di-trimethylolpropane is mainly used for production of acrylic monomers and oligomers for radiation-curable coatings and inks, including lithography, ink jet, and flexography inks. Di-TMP tetraacrylate has a very high reactivity, low skin irritation, and gives coatings with good scratch and chemical resistance, hence it also find uses in hard coats for electronics. Di-TMP is used as costabilizer in some lead-free PVC stabilizers based on calcium – zinc. Minor uses are in coating resins and synthetic lubricants.

Synthesis Reference(s)

Canadian Journal of Chemistry, 53, p. 1103, 1975 DOI: 10.1139/v75-154

General Description

Di(trimethylolpropane) is a monomeric unit with primary hydroxyl groups, that can be used as a tetrafunctional core molecule.

Flammability and Explosibility

Not classified

Di(trimethylol propane) Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 181)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Yanxi Chemical Co., Ltd.
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Henan Fengda Chemical Co., Ltd
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View Lastest Price from Di(trimethylol propane) manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Di(trimethylol propane) pictures 2025-09-25 Di(trimethylol propane)
23235-61-2
US $101.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
Di(trimethylol propane) pictures 2025-06-27 Di(trimethylol propane)
23235-61-2
US $0.00 / KG 1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
Di(trimethylol propane) pictures 2025-06-20 Di(trimethylol propane)
23235-61-2
US $20.00-10.00 / kg 1kg 0.99 10 tons Hebei Yanxi Chemical Co., Ltd.
2,2'-OXYBIS(METHYLENE)BIS(2-ETHYL-1,3-PROPANEDIOL) 2,2’-[oxybis(methylene)]bis[2-ethyl-3-propanediol 3-Propanediol,2,2’-[oxybis(methylene)]bis[2-ethyl-1 Ditrimethylol 1,3-Propanediol, 2,2-oxybis(methylene)bis2-ethyl- Perstorp Di-Trimethylolpropane Bis[2,2-di(hydroxymethyl)butyl] ether Einecs 245-509-0 Di(trimethylolpropane),2,2′-Oxybis(methylene)bis(2-ethyl-1,3-propanediol) 2,2'-[oxybis(methylene)]bis[2-ethylpropane-1,3-diol] 3,3,4-trimethyl-1,2-dioxetane 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Di(trimethylolpropane)> Bis[2-ethyl-2,2-bis(hydroxymethyl)ethyl] Ether Bis (1,1,1-trimethylolpropane) 2,2'-(Oxybis(methylene))bis(2-ethylpropane-1,3-diol)(Flakes or Chunks) DI(TRIMETHYLOLPROPANE) DTMP DI-TMP 2,2'-(Oxybis(methylene))bis(2-ethylpropane-1,3-diol) Bis(trihydroxymethyl)propane 23235-61-2 OCH2CC2H5CH2OH22 C12H26O5 Building Blocks Organic Building Blocks Polyols Oxygen Compounds KT00001