93905-03-4 Usage
Chemical Properties
2-Methoxy-3(5 and 6)-isopropylpyrazine has an earthy, bell pepper, raw potato, galbanum aroma.
Occurrence
Reported found in asparagus, cabbage, peas, carrot, cucumber, lettuce, onion, potato, bell pepper, tomato,
ginger, white wine, coffee, peanut, beans, beetroot, parsnip root and dill herb.
Preparation
(a) From 2-hydroxy-3-propylpyrazine by ethylation with diazomethane; the 2-hydroxy-3-propylpyrazine is pre pared by condensing norvaline amide hydrochloride with glyxoal (a + b + c). A mixture can be obtained by methoxylation of
isopropylchloropyrazine.
Aroma threshold values
Detection: 0.002 to 10 ppb.
Check Digit Verification of cas no
The CAS Registry Mumber 93905-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,9,0 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 93905-03:
(7*9)+(6*3)+(5*9)+(4*0)+(3*5)+(2*0)+(1*3)=144
144 % 10 = 4
So 93905-03-4 is a valid CAS Registry Number.
InChI:InChI=1/C8H12N2O/c1-6(2)7-8(11-3)10-5-4-9-7/h4-6H,1-3H3
