1887-02-1 Usage
Uses
TETRAHYDROXY-1,4-BENZOQUINONE DISODIUM SALT is used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.
Synthesis
（1)23℃After mixing 36 parts of paraldehyde with equal parts of water at ℃, transfer to a reaction kettle, and then add 12 parts of water through a separating funnel with liquid level, and 37 parts of nitric acid with a mass fraction of 63%. Slowly add to the liquid funnel, place in a 0 ° C water bath for 2 days, add 150 parts of a saturated solution of sodium bisulfite, precipitate a white precipitate, filter, wash with a small amount of alcohol, and dry to obtain glyoxal-sodium bisulfite;（2）Weigh 7 parts of glyoxal-sodium bisulfite and 50 parts of water, heat on a water bath to make a solution, add 10 parts of saturated sodium carbonate solution, continue to heat and stir in the water bath for 0.5 h, and dissolve and pour oxygen 0.01. L / m3 to generate tetrahydroxy-p-benzoquinone disodium salt.
Check Digit Verification of cas no
The CAS Registry Mumber 1887-02-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,8 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1887-02:
(6*1)+(5*8)+(4*8)+(3*7)+(2*0)+(1*2)=101
101 % 10 = 1
So 1887-02-1 is a valid CAS Registry Number.
InChI:InChI=1/C6H4O6.2K/c7-1-2(8)4(10)6(12)5(11)3(1)9;;/h7-8,11-12H;;/q;2*+1/p-2
