120-78-5

Name 2,2'-Dithiobis(benzothiazole)
CAS 120-78-5
EINECS(EC#) 204-424-9
Molecular Formula C14H8N2S4
MDL Number MFCD00022874
Molecular Weight 332.49
MOL File 120-78-5.mol
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Chemical Properties

Appearance yellow amorphous powder
Melting point  177-180 °C(lit.)
Boiling point  532.5±33.0 °C(Predicted)
density  1.5
vapor pressure  0Pa at 25℃
refractive index  1.5700 (estimate)
Fp  271°C
storage temp.  Store below +30°C.
solubility  0.01g/l
form  powder to crystal
pka -0.58±0.10(Predicted)
color  Cream to pale-yellow powder
Odor gray-wh. to cream powd. or pellets, sl. odor
Water Solubility  <0.01 g/100 mL at 21 ºC
Merck  3370
Henry's Law Constant 4.2×107 mol/(m3Pa) at 25℃, HSDB (2015)
InChI 1S/C14H8N2S4/c1-3-7-11-9(5-1)15-13(17-11)19-20-14-16-10-6-2-4-8-12(10)18-14/h1-8H
Contact allergens
This rubber chemical of the mercaptobenzothiazole group is used as a vulcanization accelerant. The most frequent occupational categories are metal industry, homemakers, health services and laboratories, and the building industry.
InChIKey AFZSMODLJJCVPP-UHFFFAOYSA-N
SMILES S(Sc1nc2ccccc2s1)c3nc4ccccc4s3
LogP 4.5 at 20℃
CAS DataBase Reference 120-78-5(CAS DataBase Reference)
NIST Chemistry Reference Benzothiazyl disulfide(120-78-5)
EPA Substance Registry System 120-78-5(EPA Substance)
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)Environment (GHS09)
GHS07,GHS09
Signal word  Warning
Hazard statements  H317-H410
Precautionary statements  P273-P280-P302+P352
Hazard Codes  Xi,N
Risk Statements 
R31:Contact with acids liberates toxic gas.
R43:May cause sensitization by skin contact.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S36/37:Wear suitable protective clothing and gloves .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 3077 9/PG 3
WGK Germany  2
RTECS  DL4550000
TSCA  TSCA listed
REACH Registrations Active
HazardClass  9
PackingGroup  III
HS Code  29342020
Storage Class 13 - Non Combustible Solids
Hazard Classifications Aquatic Acute 1
Aquatic Chronic 1
Skin Sens. 1
Hazardous Substances Data 120-78-5(Hazardous Substances Data)
Toxicity
LD50 oral in rat: > 12gm/kg

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