184951-87-9 Usage
Uses
BOC-THIONOPHE-1-(6-NITRO)BENZOTRIAZOLIDE can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.
Synthesis
To a solution of thioanilide 7 (2 mmol) dissolved
by gentle warming at 40 °C and then cooled to 0 °C in glacial
acetic acid (diluted with 5% water, 15 mL) was added NaNO2
(0.21 g, 3 mmol) in portions over 5 min with stirring. After 30
min, ice water (～100 mL) was added, and the precipitated
product was filtered and washed with water. The orange solid
was dried in vacuo at rt overnight and then at 50 °C for 4 h to
afford benzotriazoles 1-(N-BOC-L-thionophenylalaninyl)-6-nitrobenzotriazole (9b): yield 81%. as amorphous solids of
sufficient purity for use in the next step.
Check Digit Verification of cas no
The CAS Registry Mumber 184951-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,4,9,5 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 184951-87:
(8*1)+(7*8)+(6*4)+(5*9)+(4*5)+(3*1)+(2*8)+(1*7)=179
179 % 10 = 9
So 184951-87-9 is a valid CAS Registry Number.
