Merck 111474 0005 Dithiothreitol For Biochemıstry 5 GR.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Description
Catalogue Number	111474
Synonyms	DTT, Cleland’s reagent

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Product Information
CAS number	3483-12-3
EC number	222-468-7
Hill Formula	C₄H₁₀O₂S₂
Chemical formula	(C₂H₂OHSH)₂
Molar Mass	154.25 g/mol
HS Code	2930 90 99
Structure formula Image
Quality Level	MQ200

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Physicochemical Information
Density	1.377 g/cm3 (20 °C)
Melting Point	42.44 °C
pH value	5.1 (10 g/l, H₂O, 20 °C)
Vapor pressure	<0.1 hPa (25 °C)
Bulk density	300 kg/m3
Solubility	1500 g/l

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Toxicological Information
LD 50 oral	LD50 Rat 400 mg/kg

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Safety Information according to GHS
Hazard Pictogram(s)	\n\n
Hazard Statement(s)	H302: Harmful if swallowed.\nH315: Causes skin irritation.\nH318: Causes serious eye damage.
Precautionary Statement(s)	P264: Wash skin thoroughly after handling.\nP280: Wear protective gloves/ eye protection/ face protection.\nP301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.\nP302 + P352: IF ON SKIN: Wash with plenty of water.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.\nP332 + P313: If skin irritation occurs: Get medical advice/ attention.\nP501: Dispose of contents/ container to an approved waste disposal plant.
Signal Word	Danger
RTECS	EK1610000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 2 obviously hazardous to water
Disposal	6\nSulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Safety Information
Categories of danger	harmful, irritant

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Storage and Shipping Information
Storage	Store at +2°C to +8°C.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	UN 3335 , 9, III
Declaration (transport by sea) IMDG-Code	No Dangerous Good

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Specifications
Assay (iodometric)	≥ 99 %
Identity (IR-spectrum)	passes test
Melting point	40 - 43 °C
Heavy metals (as Pb)	≤ 10 ppm
Fe (Iron)	≤ 5 ppm