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135861-56-2

135861-56-2

135861-56-2

Identification

Synonyms:D-Glucitol,1,3:2,4-bis-O-[(3,4-dimethylphenyl) methylene]-;Millad 3988;Nucleating Agent NA-3;di-(3,4-dimethylbenzylidene) sorbitol;Sorbitol-based;1,3:2,4-bis-O-(3,4-dimethylbenzylidene)-D-sorbitol(DMDBS);

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Chemical Properties

  • Appearance/Colour:white powder

  • Melting Point: >250oC

  • Boiling Point: 611.599 °C at 760 mmHg

  • Flash Point:323.684 °C

  • Density: 1.196 g/cm3

  • Solubility:DMSO (Slightly), Pyridine (Sparingly, Sonicated)

  • Storage Temp.:Sealed in dry,Room Temperature

  • Vapor Pressure: 0-0Pa at 25℃

  • PKA: 13.26±0.20(Predicted)

  • PSA: 77.38000

  • LogP: 3.17020

Safety information and MSDS

Supplier and reference price view more

  • Manufacture/Brand
  • Product Description
  • Packaging
  • Price
  • Delivery
  • Purchase
  • Manufacture/Brand:TRC
  • Product Description:(1R)-1-((4R,4aR,8aS)-2,6-Bis(3,4-dimethylphenyl)tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl)ethane-1,2-diol
  • Packaging:10g
  • Price:$ 85
  • Delivery:In stock
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  • Manufacture/Brand:TCI Chemical
  • Product Description:1,3:2,4-Bis-O-(3,4-dimethylbenzylidene)-D-sorbitol >98.0%(HPLC)
  • Packaging:25g
  • Price:$ 54
  • Delivery:In stock
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  • Manufacture/Brand:TCI Chemical
  • Product Description:1,3:2,4-Bis-O-(3,4-dimethylbenzylidene)-D-sorbitol >98.0%(HPLC)
  • Packaging:5g
  • Price:$ 17
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Chemenu
  • Product Description:(1R)-1-((4R,4aR,8aS)-2,6-Bis(3,4-dimethylphenyl)tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl)ethane-1,2-diol 97%
  • Packaging:500g
  • Price:$ 337
  • Delivery:In stock
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  • Manufacture/Brand:Chemenu
  • Product Description:(1R)-1-((4R,4aR,8aS)-2,6-Bis(3,4-dimethylphenyl)tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl)ethane-1,2-diol 97%
  • Packaging:100g
  • Price:$ 122
  • Delivery:In stock
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  • Manufacture/Brand:American Custom Chemicals Corporation
  • Product Description:1,3:24- BIS (3,4-DIMETHYLOBENZYLIDENO)SORBITOL 95.00%
  • Packaging:5G
  • Price:$ 909.56
  • Delivery:In stock
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  • Manufacture/Brand:AK Scientific
  • Product Description:Dimethyldibenzylidenesorbitol
  • Packaging:100g
  • Price:$ 195
  • Delivery:In stock
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Relevant articles and documentsAll total 7 Articles be found

Method of preparing powdery diacetal clarifying agent

-

Page/Page column 15-17, (2019/07/17)

Provided is a method of preparing a powdery diacetal clarifying agent, which comprises mixing an aromatic aldehyde, a polyol, and an acid catalyst in an organic polar solvent, adding a hydrogenating agent and an inorganic silicon-containing agent into the foregoing mixture, and filtering the mixture. The powdery diacetal clarifying agent prepared by the method can have excellent flowability, dispersability, thermal resistance, and color stability. Accordingly, the powdery diacetal clarifying agent does not release stinking odor and incur yellowing at high temperature, allowing the plastic articles to have improved appearance and visual appeal.

Process For Preparation Of Acetals

-

Paragraph 0095, (2013/11/19)

A process for the preparation of 1,3:2,4-bis (4-methylbenzylidene) sorbitol (MDBS) and 1,3:2,4-bis (3,4-dimethylbenzylidene) sorbitol (DMDBS) via a dehydrocondensation reaction is disclosed. The reaction is carried out between an aldehyde and an alditol in a mole ratio of 2:1 wherein ionic fluid is used as the acidic catalyst and/or reaction medium. The ionic fluid used in accordance with the present invention is quaternary ammonium salt based ionic liquid.

PROCESS FOR PREPARATION OF ACETALS

-

Page/Page column 19, (2012/07/28)

A process for the preparation of 1,3:2,4-bis(4-methylbenzylidene) sorbitol (MDBS) and 1,3:2,4-bis(3,4-dimethylbenzylidene) sorbitol (DMDBS) via a dehydrocondensation reaction is disclosed. The reaction is carried out between an aldehyde and an alditol in a mole ratio of 2:1 wherein ionic liquid is used as the acidic catalyst and/or reaction medium. The ionic liquid used in the process is quaternary ammonium salt based ionic liquid.

Process route upstream and downstream products

Process route

3,4-dimethylbenzaldehyde
5973-71-7

3,4-dimethylbenzaldehyde

D-sorbitol
50-70-4

D-sorbitol

1,3:2,4-di-O-(3,4-dimethylbenzylidene)-D-sorbitol
135861-56-2

1,3:2,4-di-O-(3,4-dimethylbenzylidene)-D-sorbitol

Conditions
Conditions Yield
toluene-4-sulfonic acid; In acetonitrile; at 20 ℃; for 12h; Product distribution / selectivity;
99%
With trimethyl orthoformate; bismuth(lll) trifluoromethanesulfonate; In methanol; at 20 ℃; for 48h; Product distribution / selectivity;
99%
With trimethyl orthoformate; bismuth(lll) trifluoromethanesulfonate; In methanol; at 20 ℃; for 49h; Product distribution / selectivity; Heating / reflux;
99%
bismuth(lll) trifluoromethanesulfonate; In methanol; Product distribution / selectivity;
95%
toluene-4-sulfonic acid; In methanol; Product distribution / selectivity;
92%
3,4-dimethylbenzaldehyde; D-sorbitol; With camphor-10-sulfonic acid; In methanol; at 20 ℃; for 48h;
With methanol; sodium tetrahydroborate; for 2h; pH=8; Reagent/catalyst;
90.3%
With methanesulfonic acid; In methanol; at 20 ℃; for 42h; Inert atmosphere; Large scale;
86.7%
With methanesulfonic acid; choline chloride; In methanol; at 26 ℃; for 8h; Product distribution / selectivity;
80%
With methanesulfonic acid; choline chloride; In methanol; at 26 ℃; for 8h; Concentration; Reagent/catalyst; Solvent; Time;
80%
toluene-4-sulfonic acid; sodium chloride; In methanol; at 26 ℃; for 5h; Product distribution / selectivity;
77%
hydrogenchloride; In methanol; water; Product distribution / selectivity;
63%
toluene-4-sulfonic acid; In nitromethane; Product distribution / selectivity;
55%
toluene-4-sulfonic acid; In 1,4-dioxane; Product distribution / selectivity;
55%
tin(ll) chloride; In methanol; at 20 ℃; for 12h; Product distribution / selectivity;
50%
toluene-4-sulfonic acid; In N,N-dimethyl-formamide; Product distribution / selectivity;
8%
With toluene-4-sulfonic acid; In methanol; cyclohexane; at 65 ℃; for 6.5h; Concentration; Reagent/catalyst; Temperature; Time; Dean-Stark; Reflux;

135861-56-2 Upstream products

Global suppliers and manufacturers

Global( 118) Suppliers
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  • Hangzhou Dingyan Chem Co., Ltd
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  • Contact Tel:86-571-86465881,86-571-87157530,86-571-88025800
  • Emails:sales@dingyanchem.com
  • Main Products:95
  • Country:China (Mainland)
  • Leader Biochemical Group
  • Business Type:Lab/Research institutions
  • Contact Tel:86-029-68895030
  • Emails:info@leader-biogroup.com
  • Main Products:65
  • Country:China (Mainland)
  • Shanghai Upbio Tech Co.,Ltd
  • Business Type:Lab/Research institutions
  • Contact Tel:+86-21-52196435
  • Emails:upbiocn@hotmail.com
  • Main Products:89
  • Country:China (Mainland)
  • Chemwill Asia Co., Ltd.
  • Business Type:Manufacturers
  • Contact Tel:021-51086038
  • Emails:sales@chemwill.com
  • Main Products:56
  • Country:China (Mainland)
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