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D201154

Sigma-Aldrich

Dioctyl phthalate

≥99.5%

Synonym(s):

Bis(2-ethylhexyl) phthalate, DEHP, DOP, Phthalic acid bis(2-ethylhexyl ester)

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About This Item

Linear Formula:
C6H4-1,2-[CO2CH2CH(C2H5)(CH2)3CH3]2
CAS Number:
117-81-7
Molecular Weight:
390.56
Beilstein:
1890696
EC Number:
204-211-0
MDL number:
MFCD00009493
UNSPSC Code:
12352100
PubChem Substance ID:
24893594
NACRES:
NA.22
Pricing and availability is not currently available.

vapor density

>16 (vs air)

Quality Level

200

vapor pressure

1.2 mmHg ( 93 °C)

Assay

≥99.5%

form

oil

autoignition temp.

734 °F

impurities

≤0.05% water (Karl Fischer)

color

APHA: ≤10

refractive index

n25/D 1.483-1.487
n20/D 1.486 (lit.)

bp

384 °C (lit.)

mp

−50 °C (lit.)

density

0.985-0.987 g/mL at 20 °C
0.985 g/mL at 25 °C (lit.)

suitability

suitable for acidity (

<=0.003%as phthalic acid

)

SMILES string

CCCCC(CC)COC(=O)c1ccccc1C(=O)OCC(CC)CCCC

InChI

1S/C24H38O4/c1-5-9-13-19(7-3)17-27-23(25)21-15-11-12-16-22(21)24(26)28-18-20(8-4)14-10-6-2/h11-12,15-16,19-20H,5-10,13-14,17-18H2,1-4H3

InChI key

BJQHLKABXJIVAM-UHFFFAOYSA-N

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Application

Dioctyl phthalate is a non-volatile solvent mainly used as a plasticizer for polymers such as polyvinyl chloride (PVC), polystyrene (PS) and polyisoprene (PI).[1][2]

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H360FD

Hazard Classifications

Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

404.6 °F - closed cup

Flash Point(C)

207 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW3533
MKCW1089
MKCT9322
MKCV3038
MKCS8065

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Shear effects on solvated block copolymer lamellae: Polystyrene-polyisoprene in dioctyl phthalate.
Balsara NP
Physical Review Letters, 72(3), 360-360 (1994)
Dynamic mechanical behavior of the dioctyl phthalate plasticized polyvinyl chloride?epoxidized soya bean oil.
Semsarzadeh MA
European Polymer Journal, 38(2), 351-358 (2002)
Minjeong Kim et al.
Biomolecules & therapeutics, 26(5), 512-519 (2018-08-07)
Phthalates widely used in the manufacture of plastics have deeply penetrated into our everyday lives. Recently, a concern over the toxicity of phthalates on thyroid, has been raised but in most of cases, the doses employed were unrealistically high. To
Zhi-Ping Du et al.
Toxicology and applied pharmacology, 394, 114960-114960 (2020-03-24)
During pregnancy, fetal thyroid hormones (THs) are dependent on maternal placental transport and their physiological level is crucial for normal fetal neurodevelopment. Earlier research has shown that Di-(2-ethylhexyl) phthalate (DEHP) disrupts thyroid function and THs homeostasis in pregnant women and
Antía Lestido-Cardama et al.
Foods (Basel, Switzerland), 9(8) (2020-08-06)
Food packaging has received special attention from the food safety standpoint since it could be a potential source of contamination through the migration of chemical substances from the packaging material into food. The assessment of the exposure through the diet
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Questions

1–4 of 4 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. How many mg of phthalate does 1 millimeter contain?

    1 answer

    1. This product is a neat or pure oil. The density at 20 °C is 0.985 g/mL and the molecular weight is 390.56 g/mol for the pure material. The minimum purity specification is 99.5% with up to 0.05% water possible. The molecular weight of phthalic acid is 164.11 g/mol which is 42% of the total molecular weight of this material. As an example, the 5 mL package size will contain approximately 4.925 grams of dioctyl phthalate, based on the above density. To determine the amount of phthalate in 4.925 grams of dioctyl phthalate, multiply the mass by the percentage of phthalate as follows:
      4.925 x 0.42 = 2.0685 grams of phthalate per 5 mL pack size
      Note that this is an approximation and will differ from lot to lot, based on the purity, water content, and specific gravity reported in the Certificate of Analysis. Please see the link below to review a sample or lot specific Certificate:
      https://www.sigmaaldrich.com/product/aldrich/d201154#product-documentation

      Helpful?

  4. a dioktilftalát azonos a Mesamoll márkanevű anyaggal?

    1 answer

    1. Both Mesamill and Dioctyl Phthalate are widely used plasticizers, however they are unique and separate compounds with different physical properties. The CAS number for Mesamoll® is 91082-17-6 and the CAS for Dioctyl Phthalate is 117-81-7.

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