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18976-74-4

Basic Information
CAS No.: 18976-74-4
Name: Reactive Yellow 14
Molecular Structure:
Molecular Structure of 18976-74-4 (Reactive Yellow 14)
Formula: C20H21 Cl N4 O11 S3 . 2 Na
Molecular Weight: 669.04
Synonyms: Benzenesulfonicacid,3-chloro-4-[4,5-dihydro-4-[[2-methoxy-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-5-methyl-,disodium salt (9CI); m-Toluenesulfonic acid,5-chloro-4-[4-[[5-[(2-hydroxyethyl)sulfonyl]-2-methoxyphenyl]azo]-3-methyl-5-oxo-2-pyrazolin-1-yl]-,hydrogen sulfate (ester), disodium salt (8CI); C.I. Reactive Yellow 14; ProcionYellow MX 4R; Remazol Yellow G; Sumifix Yellow G
EINECS: 242-710-5
Density: g/cm3
Boiling Point: °Cat760mmHg
Flash Point: °C
Safety: Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits very toxic fumes of SOx, Cl, Na2O, and NOx.
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Chemistry

MF: C20H19ClN4Na2O11S3
MW: 669.0126
EINECS  Remazol Yellow G (18976-74-4): 242-710-5
IUPAC Name: Disodium 3-chloro-4-[4-[2-methoxy-5-(2-sulfonatooxyethylsulfonyl)phenyl]diazenyl-3-methyl-5-oxo-4H-pyrazol-1-yl]-5-methylbenzenesulfonate
Synonyms: Reactive Yellow 14 ; Disodium 5-chloro-6-[4,5-dihydro-4-[[2-methoxy-5-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]toluene-3-sulphonate ; Reactive yellow 14 (18976-74-4) ; Light Yellow KN-G ; 3-Chloro-4-[4,5-dihydro-4-[[2-methoxy-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-5-methylbenzenesulfonic acid disodium salt ; C.I.19036 ; Remazol Yellow G
Following is the molecular structure of Remazol Yellow G (18976-74-4):

Safety Profile

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits very toxic fumes of SOx, Cl, Na2O, and NOx.