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20801

Sigma-Aldrich

1,1,1-Trichloro-2-methyl-2-propanol hemihydrate

meets analytical specification of Ph. Eur., BP, NF, 98-100.5% (calc with ref. to anhyd. subst.)

Sinonimo/i:

β,β,β-Trichloro-tert-butyl alcohol hemihydrate, ‘Acetone chloroform’, ‘Chlorobutanol’

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About This Item

Formula condensata:
Cl3CC(CH3)2OH · 0.5H2O
Numero CAS:
Peso molecolare:
186.46
Beilstein:
878167
Numero CE:
Numero MDL:
Codice UNSPSC:
41116107
ID PubChem:
NACRES:
NA.21

Livello qualitativo

Saggio

98-100.5% (calc with ref. to anhyd. subst.)

Stato

solid

Qualità

meets analytical specification of Ph. Eur., BP, NF

Impurezze

≤0.002% heavy metals (as Pb)
4.5-5.5% water (Karl Fischer)

Residuo alla calcinazione

≤0.1% (as SO4)

Punto di fusione

76-80 °C

Anioni in tracce

chloride (Cl-): ≤100 mg/kg

applicazioni

pharmaceutical (small molecule)

Stringa SMILE

O.CC(C)(O)C(Cl)(Cl)Cl.CC(C)(O)C(Cl)(Cl)Cl

InChI

1S/2C4H7Cl3O.H2O/c2*1-3(2,8)4(5,6)7;/h2*8H,1-2H3;1H2
WRWLCXJYIMRJIN-UHFFFAOYSA-N

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Applicazioni

1,1,1-Trichloro-2-methyl-2-propanol hemihydrate (chlorobutanol) is a preservative used as a standard for quantifying preservatives in pharmaceutical formulations by using capillary electrophoretic method. It has also been used to anesthetize leeches for preparing c-DNA library from regenerating retzius cells.

Azioni biochim/fisiol

Chlorobutanol or 1,1,1-Trichloro-2-methyl-2-propanol is a opthalmic preservative and sedative hypnotic that possess antibacterial and antifungal properties. It also decreases the conduction velocity and induces conduction failure and automaticity within isolated ventricular muscle strips as well as impacts myocardial cells by acting on cell membrane and reduces isometric tension produced by heart.

Pittogrammi

Exclamation mark

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 4 Oral

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

212.0 °F - closed cup

Punto d’infiammabilità (°C)

100 °C - closed cup

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves


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K Hermsmeyer et al.
The American journal of physiology, 230(2), 306-310 (1976-02-01)
The negative inotropic effect of a commonly used formulation of bradykinin (Sandoz BRS-640) was found to be due to chlorobutanol, a constituent of the preparation. Solutions containing up to 100 mug of crystalline bradykinin/ml had no effect on tension or
Elena S Novitskaya et al.
Clinics in dermatology, 29(3), 295-299 (2011-04-19)
Identifying contact allergens in ophthalmic medications can be a challenging and daunting experience. We summarize data on topical ophthalmic medications with the potential to cause periorbital contact dermatitis and allergic conjunctivitis, highlighting current dilemmas and controversies in this area. The
S Korneev et al.
Invertebrate neuroscience : IN, 3(2-3), 185-192 (1998-10-23)
We have constructed a subtractive cDNA library from regenerating Retzius cells of the leech, Hirudo medicinalis. It is highly enriched in sequences up-regulated during nerve regeneration. Sequence analysis of selected recombinants has identified both novel sequences and sequences homologous to
Małgorzata Jaworska et al.
Journal of separation science, 28(2), 137-143 (2005-03-10)
Preservatives are used to protect pharmaceutical formulations from microbial attack during the period of administration to the patient. Because of their biological activity, preservatives have to be identified and assayed according to the same rules as apply to active components.

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