The CAS Registry Mumber 155538-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,5,3 and 8 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 155538-87: (8*1)+(7*5)+(6*5)+(5*5)+(4*3)+(3*8)+(2*8)+(1*7)=157 157 % 10 = 7 So 155538-87-7 is a valid CAS Registry Number.
155538-87-7SDS
SAFETY DATA SHEETS
According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition