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Sigma-Aldrich

4,4′-Methylenebis(cyclohexyl isocyanate), mixture of isomers

90%

Sinonimo/i:

HMDI, Hydrogenated MDI

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About This Item

Formula condensata:
CH2(C6H10NCO)2
Numero CAS:
5124-30-1
Peso molecolare:
262.35
Numero CE:
225-863-2
Numero MDL:
MFCD00015405
Codice UNSPSC:
12162002
ID PubChem:
24864223
NACRES:
NA.23

CHF 69.10

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Livello qualitativo

200

Saggio

90%

Stato

liquid

Indice di rifrazione

n20/D 1.497 (lit.)

Punto di fusione

26 °C (lit.)

Densità

1.066 g/mL at 25 °C (lit.)

Stringa SMILE

O=C=NC1CCC(CC1)CC2CCC(CC2)N=C=O

InChI

1S/C15H22N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h12-15H,1-9H2
KORSJDCBLAPZEQ-UHFFFAOYSA-N

Categorie correlate

Descrizione generale

4,4′-Methylenebis(cyclohexyl isocyanate), mixture of isomers (HMDI) is an aromatic diisocyanate with good mechanical properties. It is light stable and is resistant to hydrolysis. It is majorly used in the synthesis of polyurethane.[1][2]

Applicazioni

HMDI forms NCO linkages which can be used in the synthesis of polyurethanes for a variety of biomedical applications.[3][4][5]

Pittogrammi

Skull and crossbonesHealth hazard
GHS06,GHS08

Avvertenze

Danger

Indicazioni di pericolo

H315,H317,H319,H330,H334,H335

Classi di pericolo

Acute Tox. 2 Inhalation - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

235.4 °F - closed cup

Punto d’infiammabilità (°C)

113 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificati d'analisi (COA)

Lot/Batch Number
MKCT5764
MKCS9277
MKCS7690
MKCN5062
MKCK0868

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I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

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Hyperbranched polyurethane (HBPU)-urea and HBPU-imide coatings: effect of chain extender and NCO/OH ratio on their properties
Mishra AK, et al.
Progress in Organic Coatings, 74(1), 134-141 (2012)
Jeff C H Donovan et al.
Dermatitis : contact, atopic, occupational, drug, 20(4), 214-217 (2009-10-07)
Isocyanates are widely used in the manufacturing of rigid and flexible foams, fibers, and coatings such as paints, varnishes, and elastomers but are rarely reported as contact sensitizers. The aliphatic diisocyanate dicyclohexylmethane-4,4'-diisocyanate (DMDI) is known to be a strong cutaneous
M H Karol
Annals of allergy, 66(6), 485-489 (1991-06-01)
Isocyanates are highly reactive chemicals capable of causing a multitude of toxicologic effects including respiratory irritation, dermal irritation, contact sensitivity, and pulmonary hypersensitivity. In order to probe the mechanism(s) underlying these reactions, an animal model has been developed. The guinea
Sanjay Gandhi et al.
American journal of obstetrics and gynecology, 192(5), 1643-1648 (2005-05-20)
The purpose of this study was to examine the histopathologic changes of HMDI (Hexamethylene di-isocyanate) cross-linked porcine dermis grafts used for suburethral sling surgery. Twelve patients underwent reoperation with graft removal for urinary retention or recurrent stress urinary incontinence after
Effect of different isocyanates on the properties of soy-based polyurethanes
Javni I, et al.
Journal of Applied Polymer Science, 88(13), 2912-2916 (2003)
Visualizza tutti i documenti correlati

Questions

1–3 of 3 Questions  

  1. 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

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  2. 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

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  3. It appears that the SDS provided for this product (H-331, toxic if inhaled) might not be in line with the H-phrases presented by some industrial suppliers (H-330 fatal if inhaled). Would it be possible to check which labelling is correct?

    1 answer

    1. Thank you for calling attention to this issue. The product safety and regulatory toxicology teams have carefully reviewed this compound and verified the GHS classification for this product. The SDS has been updated to 'Acute toxicity, Inhalation (Category 2), H330'. To the best of our knowledge this would be the most current and accurate information.

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