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23100

Sigma-Aldrich

Chloral hydrate

crystallized, ≥98.0% (T)

Synonym(s):

Trichloroacetaldehyde hydrate

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About This Item

Linear Formula:
Cl3CCH(OH)2
CAS Number:
Molecular Weight:
165.40
Beilstein:
1698497
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Quality Level

Assay

≥98.0% (T)

form

solid

quality

crystallized

mp

57 °C (lit.)

functional group

chloro
hydroxyl

SMILES string

OC(O)C(Cl)(Cl)Cl

InChI

1S/C2H3Cl3O2/c3-2(4,5)1(6)7/h1,6-7H

InChI key

RNFNDJAIBTYOQL-UHFFFAOYSA-N

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Application

Chloral hydrate can be used as:
  • A reactant in the asymmetric synthesis of β-trichloromethyl-β-hydroxyketones by reacting with chiral imines[1].
  • A water carrier for the efficient deprotectionof acetals, dithioacetals, and tetrahydropyranyl ethers in organic solvents[2].
  • A reactant to synthesize 2-(hydroxyimino)-N-(2-iodophenyl)acetamide using 2-iodoaniline in the presence of hydrochloric acid, sodium sulfate, and hydroxyamine hydrochloride[3].
Chloral hydrate is a geminal diol and is used as a precursor and laboratory chemical reagent. It is utilized to synthesize isatins by condensing primary arylamine and chloral hydrate in the presence of hydroxylamine and sodium sulfate.

Other Notes

Sales restrictions may apply

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

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

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Chloral hydrate as a water carrier for the efficient deprotection of acetals, dithioacetals, and tetrahydropyranyl ethers in organic solvents
Chandrasekhar S, et al.
Synthetic Communications, 44, 1904-1913 (2014)
Jianguo Wang et al.
Journal of agricultural and food chemistry, 59(18), 9892-9900 (2011-08-16)
Acetohydroxyacid synthase (AHAS) catalyzes the first common step in the biosynthesis of the branched-chain amino acids. As a result of its metabolic importance in plants, it is a target for many commercial herbicides. Virtual screening analysis inspired the evaluation of
Kazumasa Funabiki et al.
Organic letters, 5(12), 2059-2061 (2003-06-07)
[reaction: see text] Chloral or its hydrate undergoes the carbon-carbon bond-formation reaction with various optically active imines in the absence of any additive, followed by hydrolysis, to produce the corresponding beta-trichloromethyl-beta-hydroxy ketones in good yields with high enantioselectivities. In addition
Stephanie K West et al.
The British journal of ophthalmology, 97(11), 1437-1442 (2013-09-21)
To report the largest study on the safety and effectiveness of sedation in paediatric ophthalmology in a nurse-led outpatient sedation unit. Retrospective cohort study reviewing all children who underwent sedation from January 2006 to December 2010. Patients were sedated with
A D Steinberg
Pediatrics, 92(3), 442-446 (1993-09-01)
Current federal regulations of potentially carcinogenic environmental chemicals are based on the assumption that risks for humans can be extrapolated from the effects of chronic high-dose exposure of rodents. It is assumed that all chemicals induce cancer by a genotoxic

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    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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  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

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