137888-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137888-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,8 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 137888-44:
(8*1)+(7*3)+(6*7)+(5*8)+(4*8)+(3*8)+(2*4)+(1*4)=179
179 % 10 = 9
So 137888-44-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H19O9P/c17-11-12(18)14(20)16(15(21)13(11)19)25-26(22,23)24-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11-21H,(H,22,23)/t11?,12-,13+,14-,15-,16?/m0/s1